When configuring partitions and CSSs, how do you limit the access that the gateways have?

A.
You should create CSSs for different classes of restriction (i.e. Local Dialing, Internal Only, Long Distance, International, etc) so that the route patterns can later be assigned the correct CSS to limit their access.

B.
You should create partitions for different classes of restriction (i.e. Local Dialing, Internal Only, Long Distance, International, etc) so that the route patterns can later be assigned the correct partition to limit their access.

C.
You should create CSSs for different classes of restriction (i.e. Local Dialing, Internal Only, Long Distance, International, etc) so that the gateways can later be assigned the correct CSS to limit the access of those gateways.

D.
You should create partitions for different classes of restriction (i.e. Local Dialing, Internal Only, Long Distance, International, etc) so that the gateways can later be assigned the correct partition to limit the access of those gateways.