(EDGE2020)
New Hampshire’s legislature has declared a busy roundabout a hazard because of the number of semi accidents that occur there. They’ve hired an independent consultant who specializes in traffic flow to make recommendations for improvement. What tasks will this person perform for the state?

A. working with police to study accidents and designing a traffic-improvement plan for the roundabout
B. working with police to step up enforcement after analyzing traffic flow information
C. analyzing traffic flow information and convincing shipping companies to use a different route
D. analyzing traffic flow and designing a traffic-improvement plan for the roundabout