Which command is used to configure RMAN to perform a compressed backup for every backup executed？（）

• A、 BACKUP AS COMPRESSED BACKUPSET DATABASE
• B、 BACKUP AS COMPRESSED COPY OF DATABASE
• C、 CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSET
• D、 CONFIGURE DEVICE TYPE DISK BACKUP TYPE COMPRESS 
• E、 BACKUP DATABASE COMPRESS