Which of the following page number options allows you to remove a page number from the first page of a document?

Choosing the option that allows you to set a different first page is the correct approach to remove a page number from the first page of a document. When you select the "Different First Page" feature in a word processing application, it enables you to have a unique header or footer for the first page compared to the rest of the document. This setting is especially useful for formal documents, such as reports or theses, where the title page typically does not contain a page number.

By enabling "Different First Page," you can leave the header or footer for that page blank or customize it in any way you'd prefer, while maintaining the page numbering format for subsequent pages. This feature provides flexibility in document formatting, allowing you to emphasize the content of the first page without the distraction of a page number.

The other options, while they may imply adjustments related to page numbers, do not specifically offer the capability to differentiate the first page’s layout and remove its page number in the same way.