Food safety is important. Rulesto stop people from food pollution.A must makeB must be mad

问题补充：

Food safety is important. Rulesto stop people from food pollution.

A、must make

B、must be made

C、can’t be made

答案：

解析：make rules to stop制定规章制度来阻止…；rules提前，句子要用被动形式，must表必须，情态动词的被动形式must be done;句意：食品安全是很重要的。一些规章制度必须被采取来使人们远离食品污染。故选B.