Match each Windows power option with its effect.

### Why this is right These options differ in what happens to your user session, meaning your account’s active desktop and running apps. Lock blocks access to that session without ending it, while logging off ends it; sleep keeps it available in a low-power state, while restart closes it and starts the computer again. ### The concept A **user session** is the period when you are signed in, with your desktop and apps available. **Lock** requires you to unlock the computer before using that session again, but leaves its apps running. **Log off** ends the session and closes its apps, so save any unsaved work first. **Sleep** uses little power and keeps the session available so you can resume it. **Restart** closes the current session and starts Windows again, which can clear temporary system issues. ### The pairs | Item | Matches | Why | |---|---|---| | Lock | Protects access while leaving the session open | It blocks other people from using your desktop until you unlock it, while keeping your apps and session active. | | Log off | Ends the user session | It signs you out and closes the apps in that session. | | Sleep | Uses a low-power state while keeping the session available | It reduces power use while keeping your session ready to resume. | | Restart | Closes the current session and starts the computer again | It shuts down the current Windows session, then starts the computer and Windows anew. | ### Terms - **User session**: Your signed-in account’s active desktop and the apps running under it. - **Low-power state**: A mode that uses less electricity than normal operation while keeping the computer ready to resume. ### Remember Lock keeps your session open but blocks access; log off ends it, sleep keeps it ready, and restart starts Windows again.