The Database Administration team is interested in performing manual backups of an Amazon RDS Oracle DB instance.
What steps should be taken to perform the backups?

A. Attach an Amazon EBS volume with Oracle RMAN installed to the RDS instance.
B. Take a snapshot of the EBS volume that is attached to the DB instance.
C. Install Oracle Secure Backup on the RDS instance and back up the Oracle database to Amazon S3.
D. Take a snapshot of the DB instance.