Your company has an Active Directory forest. The company has branch offices in three locations. Each location has an organizational unit. You need to ensure that the branch office administrators are able to create and apply GPOs only to their respective organizational units. Which two actions should you perform（）
- AAdd the user accounts of the branch office administrators to the Group Policy Creator Owners Group.
- BModify the Managed By tab in each organizational unit to add the branch office administrators to their respective organizational units.
- CRun the Delegation of Control wizard and delegate the right to link GPOs for the domain to the branch office administrators.
- DRun the Delegation of Control wizard and delegate the right to link GPOs for their branch organizational units to the branch office administrators.