A. Ctrl + W
B. Ctrl + Q
C. Ctrl + Shift + C
D. Shift + W

Solution

A. Ctrl + W

Explanation

In LibreOffice Calc, the shortcut key used to exit the worksheet (i.e., close the application) is:

Ctrl + Q This will close the entire application. If you just want to close the current document (worksheet) but keep LibreOffice Calc running, you can use:

Ctrl + W

Ctrl + W: Closes the currently active worksheet or document.

Ctrl + Q: Exits the LibreOffice Calc application completely