A. The controller and gateway must be on the same routable network as the Kubernetes or EPIC hosts.

B. The controller and gateway must be on the same routable network as each other, but not necessarily other hosts.

C. The controller and gateway must be on routable networks, but do not have to be on the same network as each other or other hosts.

D. The controller and gateway must be on the same non-routable private network as each other and all other hosts.