When the sympathetic nervous system is stimulated, the interstitial cells of cajal, pacemaker cells of the gi tract, react by a. decreasing amplitude or abolishing the slow waves that control the spontaneous oscillations in membrane potentials. b. signaling the vagus nerve to slow down motility and increase absorption of water from the large intestine. c. increasing the amount of secretions being entered into each segment of the intestinal tract. d. increasing the peristaltic motion of the gi tract, thereby causing explosive diarrhea?