参考答案

正确答案：B
解析：本题作为这几题中的最后一题，题干出处应该到文章末尾找。由more nutritious and safer than conventional food可以看出是在比较有机食品和传统食品。在最后一个小标题Is Organic Food Better than Conventional Food?的第一段提到There is no scientific evidence to suggest that it is more nutritious or safer than conventional food