Glucagon Plays a Homeostatic Role by

Glucagon plays a homeostatic role by

A) being released from the pancreas in response to elevated blood glucose levels and then activating the liver phosphorylase system.
B) being released from the pancreas in response to lowered blood glucose levels and then activating the liver phosphorylase system.
C) stimulating the release of glucose residues from muscle glycogen during periods of intense muscular activity.
D) activating adenylate cyclase in skeletal muscle cells.
E) facilitating glucose uptake into skeletal muscle.