单选题 The other distinguishing trait of the law is ______.

A、 punishment is carried out by the courts at all levels
B、 rules and court practices initiated by a governmental agency are specifically designed to increase government control
C、 a system of rules governing a conduct, activity or event incidental by nature
D、 any governmental reinforcement

【正确答案】 C

【答案解析】文章第二段中的最后一句话中有答案。