Examine the statement：   SQL> CREATE TABLESPACE user_data  2> EXTENT MANAGEMENT LOCAL  3> SEGMENT SPACE MANAGEMENT AUTO；   Which twp assumptions must be true for this statement to execute successfully？（）

• A、Oracle Managed Files are used for this instance.
• B、The USER_DATA tablespace is managed using FET$/UET$ tables.
• C、The COMPATIBLE initialization parameter must be 9.0.0 or higher.
• D、Space within segments in the USER_DATA tablespace is managed with freelists.