What is a prerequisite for a Hot Pull Open Replicator?

A.
Each FA port on the Control array (with mapped Control devices) must be able to access the
corresponding Remote devices

B.
Each FA port on the Remote array (with mapped Remote devices) must be able to access the
corresponding Control devices

C.
One FA port on the Control array (with mapped Control devices) must be able to access the
corresponding Remote devices

D.
FA port on the Remote array (with mapped Remote devices) must be able to access the
corresponding Control devices.