You are watching the baseball World Series with your friends and you are amazed at how anyone can hit a fastball. You are arguing with your friends about which systems are most important in hitting the ball. Your friend said the nervous system is involved. Which statement most accurately provides evidence to help support your friend’s claim? A.
The eyes, part of the nervous system, send messages directly to the arm muscles to swing the bat.

B.
The eye and arm, both part of the nervous system, tell the spinal cord to swing the bat.

C.
The brain and spinal cord, both part of the nervous system, direct the muscles in the arm to swing the bat.

D.
The brain, part of the nervous system, sends a message to the eyes to detect the ball and then the nerves swing the bat.