单选题 ______ among young people is difficult to expect or achieve.
A. Assurance B. Probability C. Reliance D. Conformity

【正确答案】 D
【答案解析】[解析] (conformity一致)。句意为：很难指望或实现年轻人行动的一致。A．assurance保证，信心；B．probability可能性；C．reliance信赖。