Question

Biotechnology has resulted in the formation of food crops that are resistant to herbicides. How was this most likely accomplished?
A.continually applying herbicides to the plants until they developed a tolerance to them
B.halting the use of herbicides on the food crops so that they could build a tolerance to them
C.inserting genes resistant to the herbicides into the DNA of the plants
D.placing a portion of the plant’s genes into the herbicides