What have cities done to ease congestion on highways/freeways within urban areas in the United States
A: added increased speed limits
B: allowed for more lanes devoted to motorcycles and solo cars
C: increased time limits on freeway zones to increase speeds
D: limited the approvals for drivers licenses so more drivers cannot clog up highways/freeways
E: built MOV (Multiple Occupancy Vehicle) lanes to open space for those carpooling