What is the issue for this problem?

The network administrator normally establishes a Telnet session with the switch from host A. The administrator’s attempt to establish a connect via Telnet to the switch from host B fails, but pings from host B to other two hosts are successful. What is the issue for this problem?

A.
Host B and the switch need to be in the same subnet.

B.
The switch needs and appropriate default gateway assigned.

C.
The switch interface connected to the router is down.

D.
Host B need to be assigned an IP address in vlan 1.