Which statement about VLAN pruning on trunk ports is true?
A. Manually pruning extended VLANs increases switch security.
B. Manually pruning VLANs reduces unnecessary forwarding of broadcast traffic.
C. Broadcast traffic for a manually pruned VLAN is allowed to cross the trunk port.
D. VLAns can be pruned only via VTP pruning.
https://learningnetwork.cisco.com/thread/97347