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.