When the Earth Catches Up to a Slower Moving Outer

Multiple Choice

When the Earth catches up to a slower moving outer planet and passes it in its orbit like a faster runner overtakes a slower runner in an outside lane,the planet

A) exhibits retrograde motion.
B) slows down because it feels the Earth's gravitational pull.
C) decreases in brightness as it passes through the Earth's shadow.
D) moves into a more elliptical orbit.