5.Which of the following scenes illustrates that the nervous system maintains homeostasis?

a The billiard player's nervous system adjusts his/her breathing for her not to feel nervous as he/she hits the que ball

b. The goalie's nervous system adjusts his/her heart rate to meet his/her energy needs to spike the ball.

c. The sprinter's nervous system directs the player when he/she feels hungry to eat food.

d. All of the above.​