Students are conducting an experiment to determine if the amount of sunlight affects the size of clover leaves. They plant clover in two identical pots, placing one next to a window and one inside a cupboard. They water each pot daily with 10 mL of water. Which is the independent variable?
A The amount of light the plant receives
B the kind of pot the plants are in
C the size of the plants’ leaves
D the volume of water the plants receive