Which two statements are true about unified auditing?

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Which two statements are true about unified auditing?

A. A unified audit trail captures audit information from unified audit policies and audit settings.
B. Unified auditing is enabled by executing make-fins_rdbms.mk uniaud_onioracle ORACLE_HOME=SORACLE_HOME.
C. Audit records are created for all users except sys.
D. Audit records are created only for the DML and DDL operations performed on database objects. E. Unified auditing is enabled by setting the audit_trail parameter to db, extended. F. A unified audit trail resides in a read-only table in the audsys schema in the system tablespace.