Your company has an Active Directory forest that contains Windows Server 2008 domain controllers and DNS servers. All client computers run Windows XP. You need to use your client computers to edit domain- based GPOs by using the ADMX files that are stored in the ADMX central store. What should you do（）

• A、Add your account to the Domain Admins group.
• B、Upgrade your client computers to Windows Vista.
• C、Install .NET Framework 3.0 on your client computer
• D、Create a folder on the Primary Domain Controller （PDC） emulator for the domain in the PolicyDefinitions path. Copy the ADMX files to the PolicyDefinitions folder.