You are managing an Oracle Database 11g database. You want to take a backup on tape drives of the USERS tablespace that has a single data file of 900 MB. You have tape drives of 300 MB each. To accomplish the backup， you issued the following RMAN command： RMAN>BACKUP SECTION SIZE 300M TABLESPACE users； What configuration should be effected to accomplish faster and optimized backups by using the above command？（）
- A The SBT channel must be configured， with the default parallelism setting for the SBT device set to 1
- B The COMPATIBLE initialization parameter for the database instance must be set to at least 10.0
- C The SBT channel must be configured， with the parallelism setting for the SBT device set to 3
- D The SBT channel must be configured， with the MAXPIECESIZE set to 300 MB