Identify the true statements regarding liver glycogen phosphorylase a. (Protein phosphatase 1 is abbreviated PP1)(A) Phosphorylase a prevents early glycogen synthase activation.(B) When PP1 is bound to phosphorylase a, both PP1 and phosphorylase a are active.(C) Liver phosphorylase a concentration decreases when glucose enters the blood.(D) Liver phosphorylase a is regulated by AMP, adenosine monophosphate.(E) The binding of glucose to liver phosphorylase a shifts the equilibrium from the active form to the inactive form.