Amyx is building a treehouse in his backyard. He notices that every time he strikes a nail with the hammer, the hammer bounces back just a little bit as the nail goes farther into the wood. This is because when the hammer strikes and exerts a force on a nail, the nail
A. exerts an equal and opposite force back on the hammer.
B. disperses the force of the impact throughout the wood.
C. creates a balanced force.
D. is stuck and won't go any further into the wood.