单项选择题

A. The LAP will send out a DNS request. In return, the DNS server will provide the WLC domain  name.
B. The LAP will send out a Layer 3 LWAPP discovery request to the WLC on the wireless network. 
C. The LAP will send out a DHCP request. In return, the DHCP server will provide the IP  addresses for the LAP and the WLC.
D. The LAP will send out a Layer 2 LWAPP discovery request to the WLC on the wireless network.