You have a stand-alone computer that runs Windows 7. You open Windows Update as shown in the exhibit. (Click the Exhibit button.) You need to ensure that you can manually change the Windows Update settings on the computer. What should you do? （）

A.Log on to Windows 7 as member of the Administrators group.
B.From the local Group Policy， modify the Windows Update settings.
C.Right-click Windows Update and select Run as administrator.
D.Right-click the command prompt， select Run as administrator， and then run Wuapp.exe.