which of the following must be true?
A) the organic molecule or glucose must be negativele charged in order to reduce the positevely charged NAD+
B) oxygen must be present to oxidize the NADH produced back to NAD+
C) the free energy liberated when the electrons are removed from the organic molecules must be greater than the energy required to give the electrons to NAD+
D) A and B are both correct
E) A, B and C are all correct