F F Blackman Performed Experiments to Investigate the Effects of Various

F. F. Blackman performed experiments to investigate the effects of various factors on photosynthesis. In one of his experiments, Blackman found that if light intensity was low that photosynthesis could be accelerated by increasing the amount of light, but not by increasing the temperature or carbon dioxide concentration. What can you conclude from this specific experiment?

A) Light is important for photosynthesis
B) Photosynthesis generates oxygen
C) High temperatures are important for photosynthesis
D) Carbon dioxide is important for photosynthesis