Which H.323 gatekeeper feature allows calls to be routed to a specific zone, regardless of the zone prefix in the address?

As a network administrator, you should know the features of H.323 gatekeeper. Which H.323
gatekeeper feature allows calls to be routed to a specific zone, regardless of the zone prefix in the
address?

A.
Technology prefix with hop-off

B.
Default technology prefix

C.
E.164 registration

D.
Subnet scoping