You are using maps in the WCS to design a wireless LAN network. You add a campus and two buildings to the map. Now you plan to add a new floor area to the first building. The floor types include cubes and walled offices, drywall office only, and outdoor open space. Which of the following do the floor types use to assist the WCS by adding these elements?

A.
Electromagnetic interference

B.
RF prediction

C.
Site survey utility

D.
RF modeling