Correct Answer: Option A
Ctrl+Alt+Del is the command used to reboot the computer.
-It is a shortcut that opens the Windows Security screen, where user can choose to
-restart,
-shut down, or
-log off the computer.
Ctrl+Alt+Tab is used to switch between open applications.
Ctrl+Shift+Del is used to open the Task Manager.
So the answer is (A).
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