Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 （SP2）. All client computers run Windows XP Professional Service Pack 3 （SP3）. All servers and client computers are members of the domain.You need to configure Automatic Updates on all computers to meet the following requirements：  （1）Install updates automatically on all computers.  （2）Prevent users from modifying the Automatic Update settings.  What should you do？（）

• A、From the Default Domain Policy， modify the Windows Update settings.
• B、On each client computer， run wuauclt.exe /resetauthorization.
• C、On each client computer， modify the Automatic Updates settings from Control Panel.
• D、On a server， install and configure Windows Server Updates Services （WSUS） 3.0.