5 A student investigates the effect of different colours of light on the rate of photosynthesis. In three separate experiments, he shines red, blue, or green light onto an aquatic plant. The number of oxygen bubbles produced by the plant is counted. Each experiment is carried out three times and the average number of bubbles calculated. What explains the results? A Chlorophyll absorbs red and blue light more than green light. B Green light is absorbed by the water. C Most of the green light is absorbed by the chlorophyll. D Red light is used least in photosynthesis.