The Standard Floor Space Coverage Area for Each Building Automation

The standard floor space coverage area for each building automation system (BAS) is a BAS outlet or device for every ________ of floor space.

A) 9.3 sq m (100 sq ft)
B) 23 sq m (250 sq ft)
C) 31 sq m (330 sq ft)
D) 56 sq m (600 sq ft)
E) 84 sq m (904 sq ft)