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

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

A.
Each multithreaded Oracle process has an SCMN thread.

B.
Each Oracle process runs an SCMN thread.

C.
Thread creation must be routed through a dispatcher process

D.
The local listener may pass the request to an existing process which in turn will create a
thread.

E.
The local listener may spawn a now process and have that new process create a thread