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; Identify the appropriate configuration to accomplish faster and optimized backups using the above command.（）

• A、The SBT channel must be configured, with the MAXPIECESIZE set to 300 mb.
• B、The SBT channel must be configured, with the parallelism setting for the SBT devices set to 3.
• C、The COMPATIBLE initialization parameter for the database instance must be set to at least 10.0.
• D、The SBT channel must be configured, with the default parallelism setting for the SBT devices set to 1