Your customer wants to implement a SnapVault relationship, but is concerned that the initial transfer will use up all of their network bandwidth.
Which solution should you recommend to the customer?

A.
Use the SMTapefunctionality to back up the source volume to tape and use the tape to transfer the base snapshot copy to the destination volume.

B.
Set up a SyncMirror relationship to a NetApp controller in the same data center, than ship the controller to the destination site.

C.
Manually copy each directory from the source volume to the destination volume during times when the network utilization is low.

D.
Enable volume efficiency on the destination volume.

Explanation:
(https://library.netapp.com/ecm/ecm_download_file/ECMP1197113)