Ctrl + Alt + Del is used to lock the keyboard in Windows:

A. Ctrl + Alt
B. Ctrl + Tab
C. Windows + D
D. Windows logo + L 

🧠 Explanation:

Ctrl + Alt + Del does not lock the keyboard; Windows logo + L does. For tech students, this highlights keyboard shortcuts, making it a key topic for studying operating systems, digital literacy, and computer security. The correct shortcut locks Windows instantly. Understanding this ensures efficient system use. It’s essential for mastering Windows navigation and security features. Studying shortcuts offers insights into how key combinations enhance productivity, crucial for IT, computer science, and technical writing, ensuring secure and efficient computer operation in professional or academic settings.