The amount of light and type of light is unchanged, so they are independent variables. The growth of the plants will depend if a few factors, so it is dependent. I’m not gonna lie, I have no clue about the color option. If you are using the same bean plants throughout, the color is independent so it would matter. If you are breeding them, it is then dependent on what genes they get. If this is a select all that apply question, I would suggest just putting A and B.