You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scenario？（）

A. The backup status will be marked expired in RMAN recovery catalog.

B. The backup status will be marked deleted in RMAN recovery catalog after you execute the crosscheck command.

C. The backup will be deleted physically from the OS （Operating system）and the backup information is removed from the recovery catalogl

D. The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）.

E. The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）， if you are not using Oracle Managed Files （OMF）.