The Fact That People Respond Faster to a Pinch on the Shoulder

The fact that people respond faster to a pinch on the shoulder than to a pinch on the ankle supports the conclusion that

A) different neurotransmitters control different aspects of behavior.
B) we experience a stimulus only after the message has traveled to the brain.
C) different parts of the brain control different sensory systems.
D) conscious experiences occur before the activities of the brain.