In a document longer than 10 pages, what aids in locating topics by page number?

The correct answer focuses on the importance of a Tube of Contents, commonly referred to as a Table of Contents. In lengthy documents, such as those that exceed ten pages, a Table of Contents serves as a vital navigational tool. It provides a structured outline of the document's sections, headings, and subheadings, along with their corresponding page numbers.

This arrangement allows readers to efficiently locate specific topics or areas of interest without having to search through the entire document. The inclusion of page numbers next to each entry in the Table of Contents significantly enhances usability, making it quicker for readers to access the information they need.

In contrast, a glossary typically includes definitions of terms used within the document but does not assist in locating sections by page number. A report supplement offers additional information but is separate from the main content structure. An appendix contains supplementary materials, which may not necessarily correlate directly with main document topics, and thus does not function to guide readers through the document in the same effective manner.