Sandra pushed a wooden block and it slid across the floor. The wooden block gradually slowed down and stopped after moving 10 meters. Why did the block stop moving? A. The floor exerted a force that is opposite to the direction of the block’s motion.
B. The block ran out of force.
C. The floor absorbs force from the block.
D. All objects stop moving because their natural state is to be still.

Please help, thank you!