How does the gravitational force between earth and the moon change when the distance between the two objects doubles but mass doesnt change?

Question

A. The gravitational force between earth, and the moon will completely disappear.B. The gravitational force between earth, and the moon would go up by proportional amount.C. The gravitational force between earth, and the moon will go down by proportional amount.D. The gravitational force between earth and the moon would stay the same.

Answer 1

C. The gravitational force between earth and the moon will go down by proportional amount.