For an incomplete recovery， which four backup types can be used by Recovery Manager （RMAN） to restore data files？（）

• A、 RMAN image copies.
• B、 RMAN database backups.
• C、 RMAN tablespace backups.
• D、 User-managed backups placed in the flash recovery area.
• E、 User-managed backups that have been cataloged with RMAN.
• F、 User-managed data file backups for which the pull path name is specified.