A) a catabolic exergonic reaction supplies the energy needed for an anabolic endergonic reaction to occur. B) a catabolic endergonic reaction supplies the energy needed for an anabolic exergonic reaction to occur. C) an anabolic endergonic reaction supplies the energy for a catabolic exergonic reaction to occur. D) an anabolic exergonic reaction supplies the energy for a catabolic endergonic reaction to occur.