The law passed the retirement of the public.
A. in answer to
B. in response to
C. in return to
D. in reward to
网友回答
A. in answer to
(答案→)B. in response to
C. in return to
D. in reward to
解析：短语辨析，四个选项发表表示回答应……要求、回答对……有反应、作为对……报答和在奖励，根据题意，作为对退休公众的回应，这项法律通过了。选B。