Which feature helps in the organization and easy navigation of long documents?

The feature that significantly aids in the organization and easy navigation of long documents is the table of contents. A table of contents provides a structured overview of the document’s sections and subsections, allowing readers to quickly identify and locate specific content without having to sift through the entire document. It is typically placed at the beginning and includes page numbers or hyperlinks to guide the reader directly to the relevant sections, enhancing the user experience.

Other options, while useful in their own right, do not provide the same level of navigational aid as a table of contents. For instance, page layout focuses more on the visual arrangement of content rather than the navigation of it. Footnotes provide additional information about specific terms or references but do not help in navigating the main sections of a document. Indexing is valuable for locating specific terms within the text but usually serves best as a supplementary resource rather than as a primary navigation tool.