A) the catabolism of ethanol without an oxidant, because the
Δ G is almost positive
B) the oxidation of ethanol with
NO3− as the oxidant is because of the large yield of energy released
C) the oxidation of ethanol with oxygen, because the
Δ G is the largest negative number indicating the large yield of energy released.
D) The oxidation of ethanol yields too little biomass to be catabolized.
E) None-ethanol can only be catabolized syntrophically.