Which statement is true regarding virtual private catalogs?

Which statement is true regarding virtual private catalogs?

A.
The virtual private catalog owner cannot create and modify the stored scripts.

B.
A virtual private catalog owner can create a local stored script, and have read/write

access to a global stored script.

C.
The set of views and synonyms that make up the virtual private catalog is stored in the
schema of the RMAN recovery catalog owner.

D.
To perform most of the RMAN operations, the virtual catalog owner must have the
SYSDBA or SYSOPER privilege on the target database.