Your network contains an Active Directory domain named contoso.com. You need to create a central store for the Group Policy Administrative templates. What should you do（）
- ARun dfsrmig.exe /createglobalobjects.
- BRun adprep.exe /domainprep /gpprep.
- CCopy the %SystemRoot%\PolicyDefinitions folder to the \\contoso.com\SYSVOL\contoso.com\Policies folder.
- DCopy the %SystemRoot%\System32\GroupPolicy folder to the \\contoso.com\SYSVOL\contoso.com\Policies folder