Which two statements describe advantages of genetically engineered crops?
A. Crops can be engineered to have traits that give them better food quality.
B. Pollen that spreads from crop plants to closely related wild plants can destroy wild populations.
C. Crops that are harmful to insect pests can also decrease populations of helpful insects.
D. Crops can be grown without using chemical pesticides if they are resistant to insect pests. ​