Multiple Choice
Curitiba,Brazil,has shown us that ________________.
A) unregulated urban sprawl produces severe air pollution
B) a walkable city center and expanded bus system can solve a large city's traffic congestion
C) prohibition of motorized vehicles in urban reduces pollution and saves energy
D) traffic flows smoothly once pedestrians and bicycles are eliminated
E) once roads are widened,traffic congestion decreases
Correct Answer:

Verified
Correct Answer:
Verified
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