Since we observe that all objects near Earth fall at the same acceleration regardless of their mass, what does this tell us about how gravitational force depends on mass. Pick the best single answer, keeping in mind Newton's second law and that if an object is experiencing a force toward the Earth, then the Earth must similarly have exactly the same force on it toward the ball.

It depends on the mass of the object only.

It depends inversely on the distance between the object and Earth's center.

It does not depend on either the mass of Earth or the mass of the object

It depends on both the mass of the object and the mass of the Earth.

It depends on the mass of the Earth only.