单选题 An investigation by the committee uncovered ______ instances in which the institution's resources had been misused.
A. none B. any C. no D. much

【正确答案】 C
【答案解析】[解析] 可以放在复数名词前面的and和no可能为正确答案。句子表示“没有探明任何情况”这种否定的意义，故选C。