Which Dell EMC Unity function does the File Import feature provide?

A.
Hydrates compressed Unity file systems when tiering to the Cloud with the Cloud Tiering Appliance

B.
Migrates VNX NFSv3 configured VDMs and the associated file systems to a Unity NAS server

C.
Replicates file-based VVols between two Unity systems for load balancing

D.
Moves NFS datastores between two Unity systems during a VMware vMotion operation

Explanation:
Reference: https://www.emc.com/collateral/white-papers/h15163-emc-unity-migration-technologies.pdf