What should you do from a domain controller in the main office?

Your company has a main office and three branch offices. The network contains an Active Directory domain named contoso.com.
The main office contains three domain controllers. Each branch office contains one domain controller.
You discover the new settings in the Default Domain Policy are not applied in one of the branch offices, but all other Group Policy objects (GPOs) are applied.
You need to check the replication of the Default Domain Policy for the branch office.
What should you do from a domain controller in the main office?
A. From Group Policy Management, click Default Domain Policy under Contoso.com, and then open the Scope tab.
B. From a command prompt, run dcdiag.exe.
C. From Group Policy Management, click Default Domain Policy under the Group Policy Objects container, and then open the Status tab.
D. From Windows PowerShell, run the Get-ADReplicationConnection cmdlet.