What is the end result of these commands if they are su

单项选择题

What is the end result of these commands if they are successful？（）
RMAN> show retention policy；
RMAN configuration parameters for database with db_unique_name
ORCL are： CONFIGURE RETENTION POLICY TO REDUNDANCY 1； # default
Backup database tag=gold_copy plus archivelog tag=gold_copy delete input； Backup
database tag=silver_copy plus archivelog tag=silver_copy delete input；

A. Attempting to restore silver_copy will fail.
B. Attempting to restore gold_copy will fail.
C. Both backups will be available for restore without question.
D. Attempting to restore gold_copy may or may not succeed.
E. You will not be able to restore either gold_copy or silver_copy.

1Z0-053