Your customer has a Windows NT domain environment and a Celerra (v5.1). The customer would like to upgrade this domain to Windows 2003 and use SMB Signing.

What should be done on the Celerra side?

A.
Upgrade the NAS Code to version 5.2 or higher which supports the SMB Signing by default

B.
Change the cifs.smbsigning parameter to 0 and reboot the Data Mover

C.
Change the cifs.smbsigning parameter to 0, reboot the Data Mover and configure the new Windows clients login script to use SMB Signing

D.
Upgrade the NAS Code to version 5.4, which is the only one that supports SMB Signing