为自己加油

Examine the query and its output executed In an RDBMS Instance:

Which three statements are true about the users (other than sys) in the output?

A.
The C # # B_ADMIN user can perform all backup and recovery operations
Using RMAN only.
B.
The C # # C_ADMIN user can perform t he data guard operation with Data
Guard Broker.
C.
The C # # A_ADMIN user can perform wallet operations.
D.
The C # # D_ADMIN user can perform backup and recovery operations for
Automatic Storage Management (ASM).
E.The C # # B_ADMIN user can perform all backup and recovery operations
Using RMAN or SQL* Plus.