Q1. ________ is the shortcut key that hides the selected columns in Excel.
Explanation
In Excel, Ctrl + 0 hides the selected column or columns, so it directly matches the task described in the question. Shift + F10 opens the shortcut or context menu and does not hide columns by itself. Alt + H activates the Home tab commands, but it is not the direct shortcut for hiding selected columns. F2 is used to edit the active cell. Since the question asks for the shortcut key that hides selected columns, Ctrl + 0 is the correct key combination.
