One Reason You Can Distinguish Between a Needle Prick on the Foot

Multiple Choice

One reason you can distinguish between a needle prick on the foot and an ice cube on the wrist is that

A) The ice cube stimulates a different class of receptors than the needle prick, even though both signals go to exactly the same location in the brain
B) The nerve impulse from the needle prick is inherently different from the impulse generated by the ice cube
C) The region of the brain to which one receptor pathway leads is different from the region to which the other pathway leads
D) The needle prick generates a stronger action potential in any one neuron than an ice cube does
E) None of the choices are correct