The follow picture shows the Earth and Moon (sizes not to scale relative to the distance between them). The Earth is about 100 times more massive than the Moon. The diagram also shows three positions of a hypothetical spaceship.

At which position is the force of gravity from the Moon the strongest?
    A ) A
    B) B
    C) C
    D) it is the same at all three positions

When called for, hold up the letter of your choice.