Identify the required steps in the correct order.

Examine the probable steps involved in the basic backup process of RMAN and Oracle Secure Backup (OSB):
1. RMAN initiates backup and passes the database backup storage selector to OSB.
2. RMAN creates the backup job.
3. OSB creates the backup job with an OSB user.
4. RMAN updates its repository.
5. RMAN executes the job and transfers data from a client to media.
6. OSB executes the job and transfers data from a client to media.
7. OSB updates its repository.
Identify the required steps in the correct order.

A.
1, 3, 6, 7, 4

B.
2, 1, 6, 4, 7

C.
1, 3, 5, 7, 4

D.
1, 3, 6, 4, 7