The network administrator of a certain company wants to uniformly divide the users who often access the company network from different switches into VLAN 10 when they frequently change office locations. Which of the following methods should be used to divide VLANs?
A . Divide VLAN based on protocol
B . Divide VLAN based on MAC address
C . Divide VLAN based on port
D . Divide VLAN based on subnet
Answer: D