Rapid increases in glycogenolysis in the liver is brought about by
A) Activation of phosphorylase by a signal cascade involving activation of PKA by cAM P B) Activation of phosphorylase by catalytic receptors on the surface membrane of the hepatocyte C) Increased synthesis of phosphorylase through nuclear receptors D) Depolarization of the liver cell, increased cytosolic [Ca2+] and activation of CAM Kinase E) Activation of a JAK-STAT pathway