While measuring a room to create a floor plan, Calvin measures the width of the windows and their height off the floor. The client sees him taking these measurements and says, "I thought floor plans were two-dimensional. Why do you need to know how far off the floor my windows are?" What is the BEST response that Calvin could give? "Floor plans are actually three-dimensional." "I need to know the height of the windows so I can calculate the natural light." "I need to know the height of the windows so I don't block them with furniture." "I need to know the height of the windows so I know how much furniture will fit in the room