Which command allows you to revert the most recent changes made to a document?

The command that allows you to revert the most recent changes made to a document is Ctrl + Z. This command is universally recognized as the "Undo" function in many software applications, including word processors and design programs. When you use Ctrl + Z, it effectively reverses the last action taken, whether it be text changes, formatting adjustments, or even deleted items, thus restoring the document to its previous state before the most recent modification.

In contrast, the other commands serve different purposes. Ctrl + Y is commonly used for the "Redo" action, which reinstates changes that were just undone with Ctrl + Z, but it does not revert changes. Ctrl + C is the command to copy selected text or objects to the clipboard, allowing for pasting elsewhere, while Ctrl + P is the command for printing the document. Therefore, while they are all useful shortcuts, only Ctrl + Z serves the function of reverting recent changes.