What is the purpose of bookmarks in electronic documents?

Bookmarks in electronic documents serve the primary purpose of facilitating easier navigation within the document. They act as predefined points that allow users to quickly jump to specific sections or pages, which is especially useful in lengthy documents where scrolling or searching could be time-consuming. By using bookmarks, readers can efficiently access content that may be of particular interest to them without having to sift through the entire document.

Other options provided are not aligned with the fundamental function of bookmarks. For instance, bookmarks are not designed to delete sections or portions of the document, nor do they function as a replacement for hyperlinks. While bookmarks can make navigation more manageable, they do not directly enhance the security of the document itself. Thus, recognizing bookmarks as a tool to improve user experience through easier navigation underscores their essential role in the organization and usability of electronic documents.