Answer : 3. "Ctrl + V"
Explanation :

1. The shortcut key to paste the copied cell or range in MS Excel is Ctrl+V. Pressing this key will paste the copied data into the current cell or range.

2. If you want to paste the copied data at a new location, you can click on that location using the mouse or paste it using the Ctrl+V key combination.

3. Here are some other shortcut keys that can be used to paste data in MS Excel.

- Ctrl+C: Copy

- Ctrl+X: Cut

- Ctrl+V: Paste

- Ctrl+Shift+V: Paste Special

- Alt+E, S, V: Paste option