14. Pyruvate can be converted to glucose via gluconeogenesis or oxidized to acetyl- CoA. (A) In the conversion of pyruvate to glucose, the first enzyme pyruvate carboxylase is allosterically inhibited by acetyl-CoA. (B) In the conversion of pyruvate to glucose, the first enzyme pyruvate dehydrogenase is allosterically inhibited by acetyl-CoA. (C) Pyruvate is oxidized to acetyl-CoA by pyruvate dehydrogenase complex, which is allosterically inhibited by acetyl-CoА. (D) Pyruvate is oxidized to acetyl-CoA by pyruvate dehydrogenase complex, which is allosterically activated by acetyl-CoA. (E) None of the above.