You work as a database administrator for Certkiller .com. You want to configure database backups to be run automatically.  Which tool or utility would you use to achieve this？ （）

• A、The DBMS_JOB package
• B、The BACKUP_JOB package
• C、The DBMS_BACKUP_RESTORE package
• D、The calendar tool in the Operating System （OS）
• E、The backup scheduler in Enterprise Manager （EM）
• F、The DBMS_BACKUP_SCHEDULER packager inline mode