In the parameter file of your production database， the CONTROL_FILE_RECORD_KEEP_TIME parameter is set to 31. What would be the impact of this setting on the backup that is being performed by using Recovery Manager （RMAN）？（）

• A、 The backup would be retained on the media for 31 days.
• B、 The backup would be maintained in the recovery catalog for 31 days.
• C、 The backup metadata would be retained in the control file for 31 days.
• D、 The backup metadata would be maintained in the recovery catalog for 31 days.
• E、 Automatic backups of the control file will be retained in the flash recovery area for 31 days.