Which Physiologic Effect May Occur in the Presence of Increased

Which physiologic effect may occur in the presence of increased maternal pain perception during labor?

A) Increase in uterine contractions in response to catecholamine secretion
B) Decrease in blood pressure in response to alpha receptors
C) Decreased perfusion to the placenta in response to catecholamine secretion
D) Increased uterine blood flow, causing increase in maternal blood pressure