The obvious unfairness of such poverty side by side with conspicuous affluence reminded them of their ______ parents back home.
A、vulnerable
B、destructive
C、critical
D、sentimental
【正确答案】：A
【题目解析】：vulnerable脆弱的；destructive毁灭性的；critical至关重要的；sentimental敏感的句意：这种贫穷与富裕并存的明显的不公平让他们想起了家乡脆弱的父母。
