Which three are the valid statements in relation to SQL plan baselines?（）

• A、The plans can be manually loaded to the SQL plan baseline.
• B、The plans in the SQL plan baseline are verified and accepted plans.
• C、The plans generated for every SQL statement are stored in the SQL plan baseline by default.
• D、The plan baselines are stored temporarily in the memory as long as the database instance is running.
• E、  For the SQL plan baselines to be accessible to the optimizer, the SYSAUX tablespace must be online.