单选题
The following paragraph would most probably deal with ______.
A、
train and air travel
B、
traffic jams in London
C、
possible solutions to London' s poor transportation
D、
car ownership that continues to grow
【正确答案】
C
【答案解析】
最后一段提到随着城市人口越来越多以及环境污染越来越严重，there has been a growing realization that action is needed，因此接下来就会讨论可能采取的措施。
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