Do the Physiological Effects of Heat or Cold Last the Longest

Do the physiological effects of heat or cold last the longest? Select the best response.

A) Heat, because the vascular response to heat results in relatively cool blood entering the treatment area.
B) Heat, because the increased metabolic rate results in self-sustaining internal heating.
C) Cold, because the vascular response to cold limits how quickly relatively warm blood can enter the treatment area.
D) Cold, because the decreased nerve conduction velocity slows voluntary movements that would encourage rewarming.