All of the factors described below could account for the difference in the sizes of the tomatoes. Which describes a way in which biotechnology could have caused this difference?
A. The plant on the left received more water.
B. The plant on the left was exposed to more hours of sunlight each day.
C. The plant on the left grew in an area with fewer pests.
D. The plant on the left is the result of selective breeding of plants with large fruit.