Which two statements are correct regarding the Oracle Flashback Drop feature？ （）

• A、 Recycle bin exists for the tables only in non-SYSTEM， locally managed tablespaces.
• B、 You can flash back a dropped table provided row movement has been enabled on the table.
• C、 If you drop an index before dropping its associated table， then the recovery of the index is not supported when you flash back the dropped table.
• D、 When you execute the DROP TABLESPACE？ INCLUDING CONTENTS command， the objects in the tablespace are places in the recycle bin.
• E、 When a dropped table is moved to the recycle bin， only the table is renamed to a system-generated name； its associated objects and constraints are not renamed.
• F、 If you drop a table that is protected by the recycle bin， then associated bitmap-joined indexes and materialized view logs are also stored in the recycle bin.