You used the following command in Recovery Manager （RMAN） as part of the recovery process： RESTORE CONTROLFILE FROM AUTOBACKUP；   How does RMAN find the control file autobackup？（）

• A、 By using the trace file.
• B、 By using the alert log file.
• C、 By using the database ID
• D、 By using the server parameter file.
• E、 By using the V$CONTROLFILE view.
• F、 By using the autobackup format configuration setting.