Which of the following pairs of forces is NOT an action–reaction pair according to Newton's third law?
a) force exerted by a swimmer’s feet on water and force exerted by the water on the swimmer
b) weight of a falling stone and air resistance acting on it
c) force exerted by a bat on a cricket ball and force exerted by the cricket ball on the bat
d) gravitational pull of the Earth on you and your pull on the Earth