In the Elodea experiment, photosynthesis was compared in plants in water versus plants in a bicarbonate solution. Which of the following statements is TRUE?
A) The bicarbonate solution is more acidic, which stimulated the photosynthetic process.
B) Photosynthesis was higher in bicarbonate as the solution contains extra carbon for the plant to fix.
C) There was no difference in the net photosynthesis between plants in water or bicarbonate.
D) Bicarbonate increased photosynthesis due to the additional oxygen it provided for the plant.