Last updated: May 2026
MO-110 — Microsoft Word (Microsoft 365 Apps)
Test your knowledge with official exam-style questions
Questions and options are shuffled each attempt
▶Microsoft Office Specialist: Word Associate (Microsoft 365 Apps) — Practice Set 1: All Questions & Explanations
Full question text, answer options, and explanations for this practice set — a spoiler-free alternative is the interactive quiz above for scored, shuffled practice.
1. You are working in Microsoft Word. You need to save a copy of an existing Word document in PDF format so that a client who does not have Microsoft Word can open and read it without formatting changes. What is the most efficient way to do this?
- A. Copy all the text, open a new email, paste the text, and send it as the message body
- B. Go to File > Save As (or Export), choose the save location, and select 'PDF (*.pdf)' from the 'Save as type' dropdown, then click Save(correct)
- C. Print the document and scan it back as a PDF using a scanner
- D. Change the document file extension from .docx to .pdf in File Explorer
Explanation: Microsoft Word allows saving documents directly as PDF files through File > Save As (or File > Export > Create PDF/XPS). Selecting 'PDF (*.pdf)' as the file type converts the document to PDF while preserving formatting. Renaming the file extension (Option D) does not convert the file format — it simply changes the extension without converting the content.
2. You are working in Microsoft Word. You have a 50-page report document and you need to navigate directly to page 32 without manually scrolling through the document. What is the fastest way to navigate to a specific page?
- A. Scroll down manually through the document until you reach page 32
- B. Press Ctrl+G (or F5) to open the Go To dialog, select 'Page' in the 'Go to what' list, type '32' in the Enter page number field, and click Go To(correct)
- C. Use Find & Replace (Ctrl+H) and search for text you know is on page 32
- D. Click View > Multiple Pages to see all pages simultaneously and click page 32
Explanation: The Go To function (Ctrl+G or F5) in Microsoft Word allows direct navigation to a specific page number, section, line, bookmark, or other document element. Typing the page number and clicking Go To instantly moves the cursor to that page, which is significantly faster than scrolling through a 50-page document.
3. You are working in Microsoft Word. Your company requires all documents to have 1-inch margins on all sides, double line spacing, and Times New Roman 12pt font. You need to configure these settings so they apply to all new documents you create, without having to change them each time. What should you do?
- A. Apply the formatting to each new document manually every time you create one
- B. Configure the margin, line spacing, and font settings, then modify the Normal style or click 'Set as Default' in the respective dialog boxes to save these as the default for the Normal.dotm template(correct)
- C. Create a new document template (.dotx) and email it to yourself each time you want to use it
- D. Change the Windows display settings to show more content per screen
Explanation: Microsoft Word allows you to set formatting defaults that apply to all new documents. In the Page Setup dialog, clicking 'Set as Default' saves margin settings to the Normal.dotm template. Similarly, in the Font and Paragraph dialogs, clicking 'Set as Default' and choosing 'All documents based on the Normal template' saves those settings globally. This ensures all new documents start with the required formatting without manual adjustment.
4. You are working in Microsoft Word. You receive a document from a colleague but the document opens in Protected View and shows the message 'This file originated from an Internet location and might be unsafe.' You need to be able to edit the document. What should you do?
- A. Close the document and ask your colleague to resend it from a different email address
- B. Click 'Enable Editing' in the Protected View bar to exit Protected View and enable editing, after confirming the document is from a trusted source(correct)
- C. Save the document as a new .docx file to bypass Protected View restrictions
- D. Open the document using WordPad instead of Microsoft Word to bypass the restriction
Explanation: Microsoft Word's Protected View is a read-only mode that opens files from potentially unsafe locations (internet downloads, email attachments) to protect against malicious content. After confirming the document is from a trusted source, clicking 'Enable Editing' in the yellow information bar exits Protected View and allows full document editing. This is the standard workflow for working with externally received documents.
5. You are working in Microsoft Word. You are creating a formal business report. The first paragraph of each section should not be indented, but all subsequent paragraphs should have a 0.5-inch first line indent. You also need to ensure consistent 12pt spacing after each paragraph. What is the most efficient way to apply these settings consistently throughout the document?
- A. Manually press Tab at the start of each paragraph that requires an indent and press Enter twice after each paragraph to create spacing
- B. Modify the Body Text style to include a 0.5-inch first line indent and 12pt spacing after, then apply the Body Text First Indent style (with no indent) to first paragraphs, using styles to maintain consistency(correct)
- C. Select all text and set the indent using the ruler, then manually remove the indent from first paragraphs
- D. Use the Format Painter to copy formatting from one paragraph to all others
Explanation: Using paragraph styles in Microsoft Word is the most efficient way to maintain consistent formatting. Modifying or creating styles (Body Text with first-line indent, Body Text First Indent without indent) ensures that all paragraphs using that style are automatically formatted correctly. Using Tab for indents and double Enter for spacing is not consistent and makes global formatting changes difficult. Format Painter (Option D) requires manual application to each paragraph.
6. You are working in Microsoft Word. You are preparing a legal contract that consists of two parts: Part 1 uses portrait orientation and Part 2 must use landscape orientation to accommodate a wide table. The document should be a single file. How do you change the page orientation for Part 2 only without affecting Part 1?
- A. Create two separate Word documents — one in portrait and one in landscape — and combine them by copying and pasting
- B. Place the cursor at the end of Part 1, insert a section break (Next Page), then change the page orientation to Landscape for the new section only, leaving Part 1 in Portrait orientation(correct)
- C. Change the entire document to landscape and use text boxes in portrait orientation for Part 1
- D. Rotate Part 1 text 90 degrees using text direction settings to simulate portrait orientation
Explanation: Section breaks in Microsoft Word allow different sections to have different page layouts, including different orientations, margins, headers, and footers. By inserting a Next Page section break at the end of Part 1 and then applying Landscape orientation (via Layout > Orientation) to only the Part 2 section, both orientations coexist in a single document. The orientation change must be applied with 'Apply to: This section' selected in the Page Setup dialog.
7. You are working in Microsoft Word. You need to create a two-column newsletter layout for the middle section of your document. The first and last sections should remain single-column. How do you apply the two-column layout to only the middle section of the document?
- A. Select the text for the middle section, then go to Layout > Columns > Two. Word will automatically insert section breaks around the selected text and apply two columns to only that section(correct)
- B. Manually type all newsletter text into two text boxes placed side by side on each page
- C. Create a two-column table in the middle section to simulate a column layout
- D. Set the entire document to two columns, then change the first and last sections back to one column using additional section breaks
Explanation: When you select text and apply column formatting (Layout > Columns > Two), Microsoft Word automatically inserts Continuous section breaks before and after the selected text and applies the column setting to that section only. This is the efficient way to apply multi-column layout to a specific part of a document without manually inserting section breaks. Option D is also technically valid but less efficient than Option A.
8. You are working in Microsoft Word. You have a table with 5 columns and 10 rows containing employee data. You need to sort the table alphabetically by the employee's last name, which is in the second column. What should you do?
- A. Manually rearrange the rows by cutting and pasting them in alphabetical order
- B. Click anywhere in the table, go to the Table Design or Layout tab, click 'Sort', set Column 2 as the sort key, choose 'Ascending' order, and click OK(correct)
- C. Export the table to Microsoft Excel, sort it there, and paste it back into Word
- D. Use Find & Replace to rearrange employee names in the table
Explanation: Microsoft Word's built-in table Sort feature (accessible from the Layout tab in the Table Tools contextual ribbon) allows sorting table data by one or more columns in ascending or descending order. Selecting Column 2 as the sort key and choosing Ascending sorts all rows alphabetically by last name while maintaining row integrity. This is significantly faster and more accurate than manual row rearrangement.
9. You are working in Microsoft Word. You have a large table that spans multiple pages. You need to ensure the column headers (in the first row) appear at the top of each page where the table continues, so readers always know what each column represents. What should you do?
- A. Copy the header row and manually paste it at the top of the table on each subsequent page
- B. Select the header row, go to the Table Layout tab, and click 'Repeat Header Rows' to automatically repeat the header row at the top of each page the table spans(correct)
- C. Insert a page break within the table before each page and retype the header row
- D. Use the Table Style options to enable 'Header Row' which repeats the header on each page
Explanation: The 'Repeat Header Rows' feature in Microsoft Word (Table Layout tab > Data group > Repeat Header Rows) configures the selected row(s) to automatically appear at the top of each page when the table spans multiple pages. This is managed dynamically by Word — if the table content changes and pages shift, the header still appears correctly. Option D describes enabling a formatting style for the header row but 'Header Row' in Table Style options styles the header; it does not repeat it across pages.
10. You are working in Microsoft Word. You have a bulleted list with 5 main items. Three of the main items have sub-items listed beneath them with a different bullet style. You need to change the bullet symbol for all main-level items to a filled square and the sub-level items to a dash. What is the most efficient method?
- A. Select each main-level item individually, right-click, choose 'Bullets > Define New Bullet', select a filled square symbol, and repeat for all main items
- B. Click on any main-level bullet, select all text at that list level, then change the bullet symbol to a filled square; then click on any sub-level bullet, select all text at that sub-level, and change the bullet symbol to a dash using List Bullet styles or the Bullets dropdown(correct)
- C. Delete the entire list and retype it with the correct bullet characters inserted using Insert > Symbol
- D. Change the font of the bullets to Wingdings to get the square symbol
Explanation: Microsoft Word allows you to change bullet symbols at each list level independently. By selecting all text at the main level and using the Bullets dropdown (Home tab > Paragraph group) to 'Define New Bullet' with a filled square, then selecting all sub-level items and setting a dash bullet, you efficiently configure both levels without touching each item individually. Word can also select all instances of a list level when you right-click a bullet, making multi-selection easy.
11. You are working in Microsoft Word. You have a table that contains a column of numeric values (sales figures). You need to add a row at the bottom of the table that shows the total of all values in that column, calculated using a formula. What should you do?
- A. Open Microsoft Excel, calculate the sum, then manually type the result into the Word table
- B. Click in the cell where you want the total, go to the Table Layout tab, click 'Formula', and enter =SUM(ABOVE) to sum all values in the column above the selected cell(correct)
- C. Use a text box in the table cell to display the sum
- D. Insert a Microsoft Excel spreadsheet object into the Word document to perform the calculation
Explanation: Microsoft Word tables support basic formulas for calculations. Clicking in the target cell, then going to Table Layout tab > Data group > Formula, and entering =SUM(ABOVE) calculates the sum of all numeric values in the cells above in that column. Word provides a Formula dialog with common functions and number format options. This allows simple calculations directly within a Word table without requiring Excel.
12. You are working in Microsoft Word. You are writing a research report and need to insert a footnote explaining a technical term on page 5 of the document. The footnote should appear at the bottom of page 5 with a superscript number in the text. How do you insert a footnote?
- A. Type the footnote text at the bottom of the page and manually draw a line to separate it from the main text
- B. Place the cursor after the technical term, go to References > Insert Footnote. Word automatically inserts a superscript number at the cursor position and moves the cursor to the footnote area at the bottom of the current page(correct)
- C. Insert a text box at the bottom of the page and type the footnote text there
- D. Use Insert > Header & Footer to add footnote text to the footer area of the page
Explanation: Microsoft Word's References > Insert Footnote command automatically handles all aspects of footnote creation: inserting the superscript reference number at the cursor position in the text, creating the footnote separator line at the bottom of the page, and positioning the cursor in the footnote area for you to type the footnote text. Word also automatically renumbers all footnotes if you insert or delete them.
13. You are working in Microsoft Word. You have written a 30-page technical manual with chapter headings formatted using the Heading 1, Heading 2, and Heading 3 styles. You need to insert an automatically generated table of contents at the beginning of the document that lists all headings with their page numbers, and automatically updates if you add or move content. What should you do?
- A. Manually type a table of contents, listing each heading and its page number
- B. Place the cursor at the beginning of the document, go to References > Table of Contents, and select a built-in Table of Contents style. Word automatically generates the TOC from Heading 1, 2, and 3 styles and includes page numbers(correct)
- C. Insert bookmarks at each heading and create hyperlinks from a manually typed TOC to each bookmark
- D. Use the Navigation Pane to view headings and print it separately as the table of contents
Explanation: Microsoft Word's automatic Table of Contents feature (References > Table of Contents) scans the document for text formatted with Heading styles (Heading 1, 2, 3, etc.) and generates a TOC with page numbers automatically. The TOC can be updated at any time by right-clicking it and selecting 'Update Field' or pressing F9, ensuring page numbers remain accurate if content changes. This is far more efficient and accurate than a manual TOC.
14. You are working in Microsoft Word. You have inserted a photograph into a document. The photo is currently displayed inline with text (it sits between two paragraphs). You need to position the photo to the right side of a paragraph so that the text flows around the left and bottom of the image. What should you do?
- A. Delete the photo and insert it again as a background image
- B. Select the image, go to Picture Format > Wrap Text, and choose 'Square' or 'Tight' text wrapping, then drag the image to position it on the right side of the paragraph(correct)
- C. Place the photo in a table cell next to a cell containing the text to simulate text wrapping
- D. Resize the image to be very small so it fits within the line of text
Explanation: Text wrapping settings in Microsoft Word control how text flows around an image. 'Square' wrapping creates a rectangular boundary around the image where text flows, and 'Tight' wrapping follows the actual shape of the image. Changing from 'In line with text' to 'Square' or 'Tight' allows the image to float freely, and dragging it to the right side of the paragraph makes text flow around the left and bottom of the image. This is the standard method for controlling image-text relationships in Word.
15. You are working in Microsoft Word. You need to insert a simple organizational chart showing three levels of management hierarchy. The chart should use connected boxes with the CEO at the top, three VPs at the second level, and six Directors at the third level. What is the most appropriate tool to use within Microsoft Word?
- A. Draw individual rectangles and lines using the Shapes tool and manually connect them
- B. Insert a SmartArt graphic (Insert > SmartArt), choose the 'Hierarchy' category, and select the 'Organization Chart' layout, then enter the text for each position in the SmartArt text pane(correct)
- C. Create a table with cells arranged to look like an org chart
- D. Take a screenshot of an org chart from another application and paste it as an image
Explanation: Microsoft Word's SmartArt graphics include a dedicated Hierarchy category with Organization Chart layouts specifically designed for this purpose. SmartArt allows you to enter text for each node in a structured text pane, automatically handles the connecting lines between levels, and supports adding or removing nodes while maintaining the hierarchical structure. This is far more efficient and visually consistent than manually drawing shapes and lines.
16. You are working in Microsoft Word. You have inserted a screenshot of a data dashboard as an image in your report. You need to add a descriptive caption below the image that reads 'Figure 1: Q3 Sales Dashboard' so that it can be referenced in the text and included in a list of figures. What is the correct way to add this caption?
- A. Click below the image and type 'Figure 1: Q3 Sales Dashboard' as a regular text paragraph
- B. Right-click the image and select 'Insert Caption', choose 'Figure' as the label, type ': Q3 Sales Dashboard' in the caption field, and click OK to insert a properly linked caption(correct)
- C. Add the caption text inside the image using a photo editing tool
- D. Create a text box under the image and type the caption text in it
Explanation: Microsoft Word's Insert Caption feature (accessible by right-clicking an image) creates a properly linked caption with automatic numbering (Figure 1, Figure 2, etc.). These captions can be included in an automatically generated List of Figures (References > Insert Table of Figures). Typing text manually (Option A) does not create a linkable, auto-numbered caption and cannot be used in a List of Figures.
17. You are working in Microsoft Word. You are reviewing a contract document drafted by a colleague. You need to suggest changes to the wording without altering the original text in a way that removes your colleague's ability to review and accept or reject each change individually. What feature should you use?
- A. Delete the text you want to change and type the new text directly
- B. Enable Track Changes (Review > Track Changes), then make your edits — Word will mark insertions with underline and deletions with strikethrough, and your colleague can then accept or reject each change(correct)
- C. Create a new version of the document with your changes and ask your colleague to compare the two versions
- D. Highlight the text you want to change in yellow and add a sticky note
Explanation: Track Changes (Review > Track Changes) is the Microsoft Word feature specifically designed for collaborative document review. When enabled, all insertions appear underlined and all deletions appear with strikethrough (in a different color per reviewer), allowing the document owner to review each change and choose to Accept or Reject it individually. This preserves the original text while clearly showing all proposed changes.
18. You are working in Microsoft Word. You have finished reviewing a document with many tracked changes from multiple reviewers. You need to accept all the changes made by a specific reviewer named 'Alice Chen' while rejecting all changes from all other reviewers. What is the most efficient way to do this?
- A. Scroll through the document and manually accept or reject each change one by one, checking the reviewer name before deciding
- B. In the Review tab, use 'Show Markup > Specific People' to show only Alice Chen's changes, then use 'Accept All Changes Shown' to accept only her changes, and then repeat for other reviewers to reject their changes(correct)
- C. Accept all changes in the document and then add back the text that was removed by other reviewers
- D. Ask Alice Chen to accept her own changes and ask other reviewers to reject theirs
Explanation: Microsoft Word allows filtering tracked changes by reviewer using Review > Show Markup > Specific People. When you filter to show only Alice Chen's tracked changes, the 'Accept All Changes Shown' option under the Accept button's dropdown only accepts the currently visible changes (Alice's changes), leaving other reviewers' changes intact. You can then show all changes and reject the remaining ones. This is more efficient than reviewing changes individually.
19. You are working in Microsoft Word. You need to set up a mail merge to send personalized invitation letters to 500 event attendees. Each letter should address the recipient by name, include their company name, and show the specific session they registered for. The recipient data is stored in a Microsoft Excel spreadsheet. What is the correct sequence of steps to complete the mail merge?
- A. Type all 500 letters individually, copying and pasting each recipient's information from Excel
- B. In the main Word document: go to Mailings > Start Mail Merge > Letters, then select 'Use an Existing List' to connect the Excel spreadsheet as the data source, insert merge fields (name, company, session) at the appropriate positions in the letter, preview results to verify the merge, and then click 'Finish & Merge' to generate all letters(correct)
- C. Import the Excel data into Microsoft Outlook and send individual emails from Outlook
- D. Create a Microsoft Forms survey and have each attendee fill in their own invitation
Explanation: Mail merge in Microsoft Word follows this sequence: (1) Set up the main document (Letters), (2) Connect to the data source (Excel spreadsheet), (3) Insert merge fields at the relevant positions in the letter, (4) Preview to verify the merge is working correctly, (5) Finish & Merge to either print, create individual documents, or send emails. This process generates 500 personalized letters efficiently from a single template document and data source.
20. You are working in Microsoft Word. You are creating a long technical document. The document has different headers and footers for odd and even pages, and the first page must have no header or footer at all. Chapter 3 must have a different header than the rest of the document. How do you configure these header and footer settings?
- A. Create separate documents for each chapter with different headers, then merge them
- B. In the Header & Footer tools: enable 'Different First Page' and 'Different Odd & Even Pages' options. For Chapter 3's different header, insert a section break before and after Chapter 3, then open the Chapter 3 section header and deselect 'Link to Previous' to disconnect it from the previous section's header, then type the Chapter 3 specific header(correct)
- C. Use a text box in the top margin of each page to simulate headers manually
- D. Use the Find & Replace feature to change header text wherever it appears in Chapter 3
Explanation: Complex header and footer configurations in Microsoft Word require: (1) Enabling 'Different First Page' in Header & Footer Tools to suppress the header/footer on the first page, (2) Enabling 'Different Odd & Even Pages' for alternating headers/footers, (3) Using section breaks to isolate Chapter 3, and (4) Crucially, deselecting 'Link to Previous' in the Chapter 3 section's header to disconnect it from the previous section's header, allowing a unique header for Chapter 3 only. Without unlinking, any changes to the Chapter 3 header would also change the preceding section's header.
21. You are working in Microsoft Word. You need to search for all instances of the word 'colour' in a document and replace them with 'color'. You also need to ensure the search only finds the exact word 'colour' and does not match words like 'colourful' or 'discolouration'. Which two settings should you enable in the Find and Replace dialog? Choose 2.
- A. Enable 'Find whole words only' to ensure the search matches only the standalone word 'colour' and not words that contain it as a substring(correct)
- B. Enable 'Match case' to ensure only the lowercase word 'colour' is found(correct)
- C. Enable 'Use wildcards' to define a custom search pattern
- D. Enable 'Match prefix' to ensure only words starting with 'colour' are found
- E. Enable 'Find all word forms' to find grammatical variations of the word
Explanation: To find only the exact standalone word 'colour' (not substrings): (A) 'Find whole words only' restricts matches to the complete word, excluding 'colourful' and 'discolouration'. (B) 'Match case' ensures only the exact casing is matched — if the document uses both 'colour' and 'Colour', you may want to handle them separately or ensure consistency. In most practical scenarios, 'Find whole words only' is the critical setting here. Match case (B) prevents unintended matches against 'COLOUR' if that variation exists. Using wildcards (C) adds complexity without benefit for this task. Match prefix (D) would find words starting with 'colour', which is the opposite of what is needed.
22. You are working in Microsoft Word. You need to apply consistent formatting to a report. Specifically, you want all section headings formatted as: Calibri 14pt, Bold, Dark Blue color, with 12pt spacing before and 6pt spacing after the paragraph. You will need to apply this formatting to 25 headings across the document and want the ability to update all headings at once if the formatting requirements change. What is the best approach?
- A. Manually apply the font, size, color, bold, and spacing settings to each of the 25 headings individually
- B. Format one heading with all the required settings, then right-click the Heading 1 style in the Styles gallery, choose 'Update Heading 1 to Match Selection' to update the style, and then apply the Heading 1 style to all 25 headings. Any future changes to the style will automatically update all headings(correct)
- C. Use Format Painter to copy the formatting from one heading and apply it to each of the remaining 24 headings
- D. Create a macro that applies the formatting settings to any selected text
Explanation: Using named styles is the most efficient approach for consistent, maintainable formatting in Microsoft Word. By updating the Heading 1 style to match the required formatting, all 25 headings can be updated simultaneously by applying the style. If formatting requirements change, modifying the style automatically updates all headings in the document at once. Format Painter (Option C) requires manually applying formatting to each heading and does not allow bulk updates. Styles are the foundation of professional Word document formatting.
23. You are working in Microsoft Word. You have inserted a logo image into your document header. The logo has a white background, but the header has a blue background. The white rectangle around the logo looks unprofessional. You need to remove the white background from the logo image to make it appear seamlessly on the blue header background. What should you do?
- A. Open the image in Microsoft Paint, manually erase the white background, and re-insert it into Word
- B. Select the image, go to Picture Format > Remove Background, mark the white areas as 'Mark Areas to Remove', and click 'Keep Changes' to make the background transparent within Word(correct)
- C. Change the image to grayscale using Picture Format > Color > Grayscale
- D. Set the image text wrapping to 'Behind Text' to hide the white background behind the header
Explanation: Microsoft Word's 'Remove Background' feature (Picture Format > Remove Background) allows you to remove the background from an inserted image directly within Word. You can mark areas to keep (the logo) and areas to remove (the white background), then keep the changes. The result is a PNG-like transparent background on the image, which displays seamlessly over the colored header background. This eliminates the need to use external photo editing tools for basic background removal.
24. You are working in Microsoft Word. You need to convert a paragraph of text containing a list of names and scores separated by tabs into a formatted table. The text looks like this: 'Alice[TAB]95[NEWLINE]Bob[TAB]87[NEWLINE]Carol[TAB]92'. How do you convert this text into a table with two columns (Name and Score)?
- A. Select the text, then manually draw a table over it using Insert > Draw Table
- B. Select the tab-delimited text, go to Insert > Table > Convert Text to Table, ensure 'Tabs' is selected as the delimiter and the number of columns is set to 2, then click OK(correct)
- C. Copy the text to Microsoft Excel, use Text to Columns, then paste the resulting table back into Word
- D. Delete all tabs and replace them with vertical bar characters, then format using a monospace font
Explanation: Microsoft Word's 'Convert Text to Table' feature (Insert > Table > Convert Text to Table) converts delimited text directly into a table structure. Selecting the tab-delimited text and choosing 'Tabs' as the delimiter tells Word where to create column breaks, and 'Newline' creates row breaks. Setting 2 columns matches the two tab-separated values per line. This is an efficient in-application conversion without requiring Excel.
25. You are working in Microsoft Word. You need to distribute a final version of a contract document to external parties. Before sharing, you must remove all tracked changes, comments, hidden text, and author name metadata from the document to protect reviewer identities and eliminate any residual editing history. What is the correct tool to use?
- A. Accept all changes and manually delete each comment, then save the document with a new name
- B. Go to File > Info > Check for Issues > Inspect Document, run the Document Inspector, and remove all categories of personal information, comments, tracked changes, and hidden data found by the inspector, then save the document(correct)
- C. Save the document as a PDF — PDF files do not retain Word metadata
- D. Change the author name in Word Options > General before saving to remove author attribution
Explanation: The Microsoft Word Document Inspector (File > Info > Check for Issues > Inspect Document) scans the document for hidden and personal data including comments, tracked changes, personal information (author, last modified by), hidden text, document properties, and server properties. It presents a categorized list of found items and allows you to remove each category with a single click. This is the comprehensive, reliable tool for sanitizing a document before external distribution. Manually removing comments and accepting changes (Option A) may miss hidden metadata. Saving as PDF (Option C) may still embed metadata in the PDF properties.