Which statement is true about the command?

Examine the RMAN command:
RMAN> RUN (
ALLOCATE CHANNEL c1 DEVICE TYPE sbt;
ALLOCATE CHANNEL c2 DEVICE TYPE sbt;
ALLOCATE CHANNEL c3 DEVICE TYPE sbt;
BACKUP
INCREMENTAL LEVEL = 0
(DATAFILE 1,4,5 CHANNEL c1)
(DATAFILE 2,3,9 CHANNEL c2)
(DATAFILE 6,7,8 CHANNEL c3);
SQL ‘ALTER SYSTEM ARCHIVE LOG CURRENT’;
)

Which statement is true about the command?

A.
It creates compressed backup sets.

B.
It uses asynchronous I/O for the backup.

C.
It uses parallelization for the backup set.

D.
It uses multisection backup.