You issue the following command on the RMAN prompt.   RMAN> REPORT NEED BACKUP DAYS = 5 DATABASE；   Which statement is true about executing this command？（）

• A、 It will display a list of files that need incremental backup.
• B、 It will display a list of files that need backup after five days.
• C、 It will display a list of files that were backed up in the last five days.
• D、 It will display a list of files that have not been backed up in the last five days.
• E、 It will apply the current retention policy to determine the files that need to be backed up.