Software Defined Storage (SDS) uses which type of technology to function?

A.
application

B.
replication

C.
virtualization

D.
authentication

Explanation:
While SDS builds on the virtualization of the Data Path, SDS is not virtualization alone. The Control Path needs to be abstracted as a service as well.
Reference: http://www.snia.org/sites/default/files/SNIA%20Software%20Defined%20Storage%20White%
20Paper-%20v1.0k-DRAFT.pdf