Sara hypothesizes that exposing bean plants to a colored light will produce plants that are half as tall as those grown with white light. She planted four beans in flower pots with equal amounts of soil, and kept each one under a lamp with a different colored
bulb. Sara watered her plants regularly. After three weeks, she recorded the final height of each plant in the table below.

What conclusion can be made from this experiment?
A. Green light is the most effective for growing bean plants.
B. Blue light is just as effective as white light to grow bean plants.
C. Bean plants grown with red light grew the same as those with green light.
D. Bean plants grow tallest when grown under white light.