You have a computer named Computer1 that runs Windows 7. Computer1 has a shared printer. You needto configure Computer1 so that only Administrators are authorized to shut down the computer.  What should you do?（）

• A、From User Accounts， modify the user profiles settings.
• B、From User Accounts， modify the User Account Control （UAC） settings.
• C、From the local computer policy， modify the Security Options.
• D、From the local computer policy， modify the User Rights Assignment.