81. Which one of the following statements about ẞ-oxidation is true? (A) The pathway helps to generate energy and acetyl-CoA from malonyl-CoA. (B) The pathway produces NADPH and NADH as products. (C) The pathway is highly activated in all tissues when glucose is available. (D) The rate-limiting step depends on fatty acyl-CoA entering the mitochondria. (E) All reactions in the pathway could also be used in the biosynthesis of fatty acid.