单选题 To clean up old records that are in a Flashback Data Archive and are past the retention period， what must the DBA do？（）  

A. TRUNCATE the archive table.

B. DROP the Flashback Data Archive.

C. Nothing；expired rows are automatically removed.

D. Nothing；expired rows are moved to an archive table.

E. Delete entries from the archive where the metadata date retained is greater than the retention period.