Which Statement Is NOT True About the Formation of Early

Multiple Choice

Which statement is NOT true about the formation of early organisms?

A) The first organisms were anaerobic because the atmosphere was devoid of oxygen.
B) The original electron donor for photosynthetic processes was probably H₂S.
C) Oxygen, a powerful oxidant, was probably welcomed by anaerobic organisms as a preferable choice for metabolic reactions.
D) The transfer of electrons to O₂ releases more energy than transferring electrons to SO₄^2-
E) Cyanobacteria are modern descendants of early photosynthetic oxygen-producers.