A. It involves the use of a deadly poison. B. It is a costly event which rarely occurs. C. The hunters have set rules to follow. D. The hunters have to go through strict training. 参考答案:C 答案解析:C项符合第三段中“…follow strict codes of behavior”一句的含义。A项可以排除,因为文章第一段提到使用毒药是农民消灭狐狸的方法之一,和有钱人组成的猎狐队没有关系,B项中的