问题：

[单选] A college has a small campus where 25 faculty members are located. The faculty offices and student computers are currently on the same network. The faculty are concerned about students being able to capture packets going across the network and obtain sensitive material. What could a network administrator do to protect faculty network traffic from student connections?（）

A . Install anti-virus software on the student computers.
B . Put the faculty computers in a separate VLAN.
C . Power down the switches that connect to faculty computers when they are not in use.
D . Remove the student computers from the network and put them on a peer-to-peer network.
E . Create an access list that blocks the students from the Internet where the hacking tolls are located.