You are conducting a CDP-based discovery using an edge switch for the seed. There is a router between the switch and the WLSE. None of the access points are discovered, and the discovery log shows the switch is SNMP unreachable. What is the problem?

A.
The SNMP communities on the switch do not match the WLSE.

B.
The SNMP communities on the access points do not match the WLSE.

C.
The SNMP communities on the access points do not match the switch.

D.
The SNMP communities on the router do not match the WLSE.