单选题 The solution to the problems ______ social and political reforms.
A. stands for B. sticks to C. lies in D. goes through

【正确答案】 C

【答案解析】[考点] 短语辨异。stands for象征、代表、意味着，sticks to坚持、坚守、不放弃，lies in存在、在于，goes through遭受、经历、忍受。据文意，选C。