单选题 They greeted his proposal with ______ and refused to give it serious study.
A. incredulity B. fickleness C. derision D. intensity

【正确答案】 C
【答案解析】(derision嘲笑，嘲弄)。句意为：他们对他的提议作出了嘲弄的反应，拒绝认真考虑该提议。A．incredulity不轻信，怀疑；B．fickleness感情多变；D．intensity强烈，剧烈。