85. Which metabolic effect is associated with AMP-activated protein kinase (AMPK)? (A) When activated, AMPK stimulates insulin release from the pancreas. (B) When activated, AMPK activates fructose 2,6-bisphosphatase. (C) When activated, AMPK phosphorylates glycogen synthase, inhibiting glycogen synthesis during periods of metabolic stress. (D) When activated, AMPK activates fatty acid synthase 1, stimulating fatty acid synthesis. (E) None of the answers is correct.