Which of the following combinations is NOT correct? 

Explanation / व्याख्या:

The question asks which keyboard shortcut combination is NOT correct. Let’s analyze each one:

1. Paste function = Ctrl + V ✅
   • Correct. This shortcut pastes copied or cut content at the cursor position.
   • Extra Fact: On Mac, the shortcut is Command + V.
2. Undo function = Ctrl + U ❌
   • Incorrect. The Undo function reverses the last action, and the correct shortcut is Ctrl + Z, not Ctrl + U.
   • Extra Fact: Ctrl + U is used for underline formatting in text editors like Microsoft Word.
   • Mnemonic: “Z for Undo – it goes back.”
3. Copy function = Ctrl + C ✅
   • Correct. Copies the selected content to the clipboard.
   • Extra Fact: On Mac, the shortcut is Command + C.
4. Cut function = Ctrl + X ✅
   • Correct. Cuts the selected content and stores it in the clipboard.
   • Extra Fact: “X” can be remembered as scissors, symbolizing cutting.

✅ Key Point:

Ctrl + U is NOT Undo; it is used for Underline. The correct shortcut for Undo is Ctrl + Z.