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.