Which is the best label for the dotted-line arrow?

Answer:
i don't know what the picture looks like so i'm going to guess D. orbit of the moon around Earth. i hope i'm right.
Explanation:
Answer:
The answer is C: moon's motion without gravity
Explanation:
The dotted arrow is pointing in the direction of the path it's going. Without the gravitational pull by Earth, it would go that way.