Which two Cisco Wireless Control System （WCS） statements are true？（）

A、the WCS Base version includes all the features of the WCS Location version as well as additional enhancements

B、the WCS Base version provides on-demand location of rogue access points and clients to within 33 feet （10 meters）

C、WCS adds a graphical view of multiple Cisco Wireless LAN controllers and managed access points

D、WCS includes a network management tool which is similar to a site survey tool

E、WCS uses the CDP protocol to communicate with the controllers