Which of the following BEST describes the operation of a VLAN?

Which of the following BEST describes the operation of a VLAN?

A.
A VLAN gives higher priority to packets of a specific type to ensure consistent throughput.

B.
A VLAN allows for multiple logical subnets to coexist on a single physical switch.

C.
A VLAN tracks user network traffic throughout the network to detect improper usage.

D.
A VLAN is used to scan all packets entering a network to ensure no viruses are present.