As you play the moon orbit video , notice how the arrows representing the sun's rays are at first spread apart but become parallel as the video zooms in on the moon's orbit. why do the sun's rays become parallel at the end of the video? a) the rays that reach earth and the moon come from only one very small spot on the sun. b) the sun is so far away compared to the size of the moon's orbit that all the rays reaching the orbit come from essentially the same direction. c) the video is incorrect; the sun's rays actually converge on the moon from all directions, not just as parallel rays. d) rays from the sun that start out going in different directions turn toward earth as they travel away from the sun.