Refer to the Figure Below

Refer to the figure below. Based on the graph, which statement best describes these chemical reactions?

A) Addition of a catalyst to a reaction does not affect the equilibrium position of the reaction, but only increases the rate of attainment of equilibrium.
B) Addition of a catalyst to a reaction speeds up the reaction by decreasing the amount of energy input needed to get over the activation energy barrier.
C) Addition of heat to a reaction speeds up the reaction by increasing the kinetic energy of reactant molecules, which increases collisions that result in products.
D) Addition of energy must be made to exergonic reactions in order to allow reactants to achieve the transition state that can then proceed spontaneously to form products.
E) Addition of energy to an endergonic reaction above that needed to go from reactants to products must be made in order to allow reactants to achieve the transition state.