You want to use the automatic management of backup and recovery operations features for your database. Which configuration must you set?()
A: Enable the flash recovery area and specify it as the archived redo log destination.
B: Disable the flash recovery area and start the database instance in ARCHIVELOG mode.
C: Enable the flash recovery area but do not specify it as the archived redo log destination. 
D: Disable the flash recovery area and start the database instance in NOARCHIVELOG mode.
出自:Oracle认证