The items below that are part of the first eight advantages of using the DBMS approach. a. All are advantages. b. Controlling Redundancy: Eliminate maintaining the same entity instance twice in the datastore. c. Providing Persistent Storage for Program Objects: Persisting (making permanent) the data created or updated by users and applications. d. Providing Backup and Recovery: The database enforces the safe and correct recovery of its information from unexpected system failures. The database also provides for the backup (duplication) of its data onto alternative media such as tapes.