24. Which one of the following statements is incorrect? (A) Malonyl-CoA negatively regulates carnitine acyltransferase I. (B) During vigorous exercise, glucagon activates protein kinase A (PKA) to phosphorylate acetyl-CoA carboxylase and reduce malonyl-CoA synthesis. (C) The peroxisomal ẞ oxidation is active on very-long-chain fatty acids. (D) Branched fatty acids with methyl groups, such as phytanic acid (16 C), are catabolized in peroxisomes by a oxidation. (E) In vertebrates, the preferred substrates for oxidation are fatty acids of 20 to 26 carbon atoms.