How is the Dell EMC NetWorker multi-tenancy facility option enabled?

How is the Dell EMC NetWorker multi-tenancy facility option enabled?
A . Configuring a tenant administrator in a restricted datazone
B . Adding a license to increase the number of managed zones
C . Configuring clients to a multi-tenant enabled Data Domain device
D . Configuring a restricted datazone resource on a NetWorker server

Answer: C