A boy kicks a ball with a force of 40 N. At exactly the same moment, a gust of wind blows in the opposite direction of the kick with a force of 40 N. What happened to the ball?
A. It began to move with a speed of 80 m/s.
B. It did not move.
C. It moved in the direction that the wind was blowing.
D. It moved in the direction of the kick.