Miko is blowing up balloons for her little sister’s birthday party. One of the balloons slips out of her hand before she ties it off, and it shoots through the air until it is empty. Which statement explains what causes the balloon to accelerate? A. The air leaving through the balloon's mouth pushes on the air surrounding the balloon, so the balloon experiences a net force.
B. All air surrounding the balloon pushes the balloon forward.
C. The mass of the air leaving the balloon is greater than the mass of the balloon, so the balloon moves forward.
D. When the balloon pushes on the leaving air, the leaving air pushes back on the balloon, so the balloon experiences a net force.