Which of the following would need to be created to configure an application-layer inspection of SMTP traffic operating on port 2525?

Which of the following would need to be created to configure an application-layer inspection of
SMTP traffic operating on port 2525?

A.
A class-map that matches port 2525 and applying an inspect ESMTP policy-map for that class
in the global inspection policy

B.
A policy-map that matches port 2525 and applying an inspect ESMTP class-map for that policy

C.
An access-list that matches on TCP port 2525 traffic and applying it on an interface with the
inspect option

D.
A class-map that matches port 2525 and applying it on an access-list using the inspect option