What signifies a deletion of an entire paragraph in a revision?

The correct choice indicates that an arrow is used to signify the deletion of an entire paragraph during a revision. In editing and document markup, arrows are commonly understood as indicators of movement or change, and in this context, they imply that the paragraph has been removed from the text. This visual cue is helpful for both the editor and the author to quickly identify that a section has been designated for removal, ensuring clarity in the revision process.

In contrast, the other symbols may have different meanings in document markup. For instance, circles might signify items to be retained or emphasized, hash marks could indicate text meant to be restructured or replaced, and stars often denote highlights or points of interest rather than deletions. Each symbol serves its specific function in aiding communication between editors and authors about the changes being made to the document.