Here's a problem to solve: A ball is rolling on the ground. A force pushes the ball in the same direction that it is moving. What happens to the ball?

Among the 4 following options, which is the correct answer?

- A: It stops moving.
 
- B: It moves slower.
 
- C: It moves faster in the same direction it was moving.
 
- D: It keeps moving in the same speed and direction.
 