You issued the following commands to configure setting in RMAN; Then you issued the following command to take the backup: RMAN> BACKUP DATABASE PLUS ARCHIVELOG; Which statement is true about the execution of the above command?（）
- A The backup will terminate because the FORMAT clause was not configured for the channel
- B It backs up two copies of data files to tape and disk, and two copies of archived log file on tape
- C It backs up the data files and archived log files to disk, making two copies of each data file and archived log file
- D It backs up the data files and archived log files to tape, making two copies of each data file and archived log file