Match each Windows power or session option to its corresponding effect on open programs and power state: Options to match: 1. Lock 2. Sign out (Log off) 3. Sleep 4. Shut down Descriptions: A. Closes all open applications and completely turns off power to the system B. Secures the display behind a password prompt while keeping the user session and applications running C. Closes all user applications and ends the current session while leaving the computer powered on D. Enters a low-power state that preserves open applications and documents in RAM for quick resumption

Each option describes a different relationship between access, programs, and power. **Lock** restricts access without ending the session; **Log off** ends the session and closes programs; **Sleep** conserves power while retaining running programs; and **Shut down** closes programs and turns the computer off. Matching these accurately helps avoid confusing a screen lock with a session-ending or power-off action. **Key takeaway:** Distinguish options by whether programs keep running and whether the computer remains on.\n\n**Glossary:**\n- **Session**: The current signed-in user's activity.\n- **Sleep**: A low-power computer state that retains running programs.\n- **Shut down**: The process of closing programs and turning off the computer.