You are the network administrator for The network consists of a single Active Directory domain named All network servers run Windows Server 2003. All client computers run Windows XP Professional and have the latest service pack installed. There are 500 client computers. You manage a server that has Software Update Services (SUS) installed. The latest updates were synchronized and approved for installation on the client computers. You need to configure the client computers to download the approved updates. What should you do?（）

A. Create a text file named Auto-Update.ini. Configure the correct Automatic Updates settings in the file. Copy and paste the file into the Systemroot folder on all client computers.
B. Create a GPO that has the appropriate Automatic Updates settings configured. Apply the GPO to the client computers that you to need to configure.
C. In Active Directory Users and Computers, modify the settings for the client computer accounts. Configure the Managed By property to specify the SUS server account.
D. Create a local group on the SUS server. Assign the group the Allow - Read and the Allow - Write permissions for the AutoUpdate folder on the SUS server. Add all the users of the client computers to the local group.