This question refers to a common shortcut key in applications like Microsoft Office (Word, Excel, etc.) and other software with a ribbon interface.
Explanation:
Ctrl + F1: This is the standard shortcut to show/hide the Ribbon, providing more screen space for the document or spreadsheet.
The Ribbon typically houses the most frequently used functions and commands, but hiding it can be useful when you need to focus on the content and want a cleaner interface.
The other options are not standard commands.