The concentration of populations in cities has given （） to many problems of housing, education, and medical services.
A、rise
B、reason
C、result
D、response
【正确答案】：A
【题目解析】：本题考查名词辨析。rise 上升；reason 理由；result 结果；response 回复。give rise to 引起。后面的宾语是“problems”，所以A选项“引起”最符合句意。句意：城市人口的集中引发了很多住房，教育和医疗问题。
