Refer to the topology.

If most of the communication is between hosts and the servers, which switch is best as the root switch for VLAN 20?

Exhibit:

A.
Sw-A

B.
Sw-B

C.
Sw-C

D.
Sw-D

E.
Sw-E

Explanation:

Server 3 and Server 4 belong to VLAN 20 and are connected to Switch-E. If the question asks which switch is best for the whole network then the answer should be Switch-B because it is the most centralized switch on the network.