Your company has an Active Directory forest that contains Windows Server 2008 R2 domain  controllers and DNS servers. All client computers run Windows XP SP3.<br /> 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.    <br /> What should you do()
A、Add your account to the Domain Admins group.
B、Upgrade your client computers to Windows 7.
C、Install .NET Framework 3.0 on your client computers.
D、Create a folder on PDC emulator for the domain in the PolicyDefinitions path. Copy the ADMX files to the PolicyDef