How does VTP pruning enhance network bandwidth?

A.
by restricting unicast traffic across VTP domains

B.
by reducing unnecessary flooding of traffic to inactive VLANs

C.
by limiting the spreading of VLAN information

D.
by disabling periodic VTP updates

Explanation:
VTP Pruning makes more efficient use of trunk bandwidth by forwarding broadcast and
unknown unicast frames on a VLAN only if the switch on the receiving end of the trunk has
ports in that VLAN.