Which three conditions must be met before you create a Virtual Private Catalog (VPC)? 

Answer options:

A. A base recovery catalog should exist.
B. The owner of VPC cannot own recovery catalog.
C. At least one target database should be registered in the recovery catalog.
D. The register database privilege should be granted to the virtual catalog owner.
E. The recovery_catalog_owner role should be granted to the virtual catalog owner.

CDE

Reference: http://docs.oracle.com/cd/B28359_01/backup.111/b28273/rcmsynta013.htm