in answer to
问题描述：
in answer to
The law passed _____ the retirement of the public.
A.in answer to B .in response to C.in return to D.in reward to
in answer to和in response
答
in answer to应...要求
.in response to 响应...
in return to作为..的报答
in reward to作为..的奖励所以选B.