Your database is running in ARCHIVELOG mode,and the database is open. You execute an RMAN backup and specify the KEEP clause.Which components are backed up when this option is specified?（）
- A only the control file, the current SPFILE, and data files
- B only the current SPFILE and data files if autobackup is disabled
- C only the data files and the archived redo logs
- D the control file, current SPFILE file, data files, and archived redo log