40. What is the common similarity between aerobic respiratory reactions in mitochondria and photosynthetic fixation in the chloroplast? (A) Both use the electron transport chain to pump protons from the organelle's liquid compartment into intermembrane space. (B) Both use ATPase pump to produce ATP in the intermembrane space. (C) Both use water as the electron donor. (D) Both proceed the electron transport from complex I to complex ∥. (E) Both perform carbon metabolism only when the active electron transport occurs.