单选题 He's a smart businessman who is good at hiding his ______ under a bushel.
A. idea B. coin C. light D. wit

【正确答案】 C
【答案解析】[解析] 固定搭配题。hide one's light under a bushel是固定搭配，表示“不露锋芒；对于自己的优点、能力等持谦逊态度”，故选C。