Which statement about the Calvin cycle is not true? A. CO2 reacts with RuBP to form 3PG. B. RuBP forms by the metabolism of 3PG. C. ATP and NADPH form when 3PG is oxidized. D. The concentration of 3PG rises if the light is switched off. E. Rubisco catalyzes the reaction of CO2 and RuBP.