问题详情

Which of the following is true according to the last paragraph？

A．Organic producers bother their customers with the non-GMO label.

B．Organic food may remind customers of what"s in conventional foods.

C．It is well known that GM foods have negative effect on biodiversity.

D．The U.S. Department of Agriculture encourages the prevalence of GM crops.

请帮忙给出正确答案和分析，谢谢！