21. A ball is dropped straight down to the ground from the top of a building. The wind blows from the east, pressing on the ball with a force of 5 newtons. How does the wind most likely affect the motion of the ball?
A. The wind is an unbalanced force and will cause the ball to change directions.
B. The wind is a balanced force and will not make any changes to the motion of the ball.
c. The wind is a balanced force and will cause the ball to change directions.
D. The wind is an unbalanced force and will not make any changes to the motion of the ball.