What is the purpose of the switched virtual interface on a multilayer switch?
A. enables the switch to perform QoS functions such as CBWFQ, LLQ, and traffic shaping
B. allows the multiprotocol switch to load balance traffic across trunk ports
C. provides basic Layer 3 functions for the Layer 2 switch ports assigned to a VLAN
D. prevents routing and bridge loops by creating broadcast and collision domains
