What stage of cellular respiration uses the high-energy electrons from nadh and fadh2 to form atp molecules? krebs cycle electron transport chain fermentation glycolysis

i believe the answer is a or 1

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .