Which feature surrounds the entire page rather than selected paragraphs or text?

The feature that surrounds the entire page rather than selected paragraphs or text is a page border. A page border is a decorative line or graphic that encloses the entire page, enhancing its appearance. It can be customized in design, color, and style, providing a visual frame for the content contained within the page.

In contrast, a page margin refers to the blank space on the edges of a page where text does not extend, typically used for spacing and organization but not as a decorative feature. A text box is a specific area within a document used for inserting and formatting text separately from the surrounding content, and shapes refer to graphical elements like circles or rectangles that can be added to a document but do not encompass the entire page. Therefore, the page border is uniquely suited to surround the entire page, distinguishing it clearly from the other options.