Which three are true about RMAN persistent configuration settings, administration, and their effects? (Choose three.)

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Which three are true about RMAN persistent configuration settings, administration, and their effects? (Choose three.)

A. A target databaseג€™s persistent RMAN configuration settings are always stored in the targetג€™s control file
B. Backup older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space.
C. Backups written to the fast recovery area (FRA) that are obsolete based on the redundancy retention policy can be deleted automatically to free space.
D. The RMAN SHOW ALL command displays only settings with nondefault values. E. A target databaseג€™s persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog. F. The V$RMAN_CONFIGURATION view displays only settings with values that have been modified. G. A DBA must specify either a redundancy retention policy or a recovery window retention policy.