A customer implemented an EMC Data Domain system in a Microsoft Windows environment two months ago. The Data Domain system was added to the Active Directory domain and backups ran normally until now. The backup administrator is trying to access the CIFS share on the Data Domain system from the Windows storage node and is getting an access denied message.
What is a possible cause?

A.
Privileges for the user account used by the Data Domain system were removed

B.
Time difference between the Data Domain system and the Active Directory server is less than two minutes

C.
Replication services on the Data Domain system are stopped

D.
Cleaning activities have been pending on the Data Domain system for more than one week