You are working on an Oracle Database 10g database. You enabled the Flashback Database feature. Which two statements regarding flashback logs are true？ （）
- A Flashback logs are not archived.
- B Flashback logs are maintained in redo log files.
- C Flashback logs are maintained in the Flash Recovery Area.
- D Flashback logs are used to maintain Flashback Database related errors.
- E Flashback logs need to be cleared manually after you disable Flashback Database.