单选题 In view of the economic development of the country, for the establishment of a commission to prevent practices having adverse effect on competition in the market, to protect the interest of consumers and to ensure freedom of trade carried on by other participants in the markets.

A、 comma splice
B、 run on
C、 fragment
D、 correct

【正确答案】 C

【答案解析】[解析] 这里的三个分句都是以介词开头，在这里都相当于状语成分，因此该句虽长，却没有主句，因此句子成分残缺。