How does one answer this question? I reckon its a. But I want to be certain. Superman stands atop a very tall mountain and throws a baseball horizontally with a speed such that the baseball goes into a circular orbit around the earth. While the baseball is in orbit, the acceleration of the ball ______. a. depends on how fast the ball is thrown. b. is slightly less than 9.8 m/s c. = to 9.8 m/s d. is zero because the ball does not fall into the ground. thanks in advance.