【单选题】Traffic jam and cities, it seems, go hand in hand. Everyone complains about being stuck in traffic; but, like the weather, no one seems to do anything about it. In particular, traffic engineers, trans...
A.
traffic jam and weather are the two factors preventing the development of the big city
B.
traffic jam seems to be very difficult to deal with
C.
if traffic engineers try their best, traffic jam can be solved
D.
public officials are always criticized for misusing their power