When a bullet is shot from a gun, the bullet moves forward, and the gun moves backward. Which of the following statements regarding the motion of the bullet and the gun is correct according to Newton's third law of motion?
a)The bullet moves forward due to the force of friction between the bullet and the gun.
b)The bullet moves forward because it has a larger mass compared to the gun.
c)The bullet moves forward due to the action force exerted by the gun, and the gun moves backward due to the reaction force exerted by the bullet.
d)The bullet moves forward due to the action force exerted by the bullet, and the gun moves backward due to the reaction force exerted by the bullet.