Explanation:

- Option 1: Esc

- The Esc key is generally used to cancel or close tasks. It doesn't launch the Start button.

- Option 2: Shift

- The Shift key is typically used to capitalize letters or create special characters. It doesn't launch the Start button.

- Option 3: Windows

- The Windows key is used to launch the Start menu on a Windows computer.

- This is the correct answer.

- Option 4: Shortcut

- Shortcut isn’t a specific key. It represents a combination of keys, not relevant for this task.