Which three statements are true when the listener handles connection requests to an Oracle 12cdatabase instance with multithreaded architecture enabled In UNIX?（）

• A、Thread creation must be routed through a dispatcher process
• B、The local listener may spawn a now process and have that new process create a thread
• C、Each Oracle process runs an SCMN thread.
• D、Each multithreaded Oracle process has an SCMN thread.
• E、The local listener may pass the request to an existing process which in turn will create a thread.