What happens to those insects when not killed by the spray of insecticide？

What happens to those insects when not killed by the spray of insecticide？ 查看材料

A.They may lose their ability to produce offspring.

B.They may have a higher ability to adapt to the environment.

C.They move to other fields free from insecticide.

D.They never eat again those plants containing insecticide.

请帮忙给出正确答案和分析，谢谢！