Which parameter would be enabled for this solution?

You have a VoIP application that requires external sessions to be initiated into your environment. The internal host has previously sent a packet to the external VoIP application’s reflexive transport address.

Which parameter would be enabled for this solution?

A.
persistent-nat all-remote-host

B.
persistent-nat target-host-port

C.
persistent-nat target-host

D.
persistent-nat any-remote-host