58. The direct energy source that drives ATP synthesis during oxidative phosphorylation is
(A) the oxidation of glucose and other organic compounds.
(B) the endergonic flow of electrons down the electron transport chain.
(C) the affinity of oxygen for electrons.
(D) a difference of H+
concentration on opposite sides of the inner mitochondrial membrane.
(E) the transfer of phosphate from Krebs cycle intermediates to ATP.