How Does CAPWAP Communicate Between an Access Point in Local

How does CAPWAP communicate between an access point in local mode and a WLC?

A) The access point must not be connected to the wired network, as it would create a loop
B) The access point must be connected to the same switch as the WLC
C) The access point must directly connect to the WLC using a copper cable
D) The access point has the ability to link to any switch in the network, assuming connectivity to the WLC