Question

many of the planets in our solar system are visible in earth’s night sky. over time, these planets are seen to travel slowly eastward relative to the stars. during certain periods, however, the planets seem to reverse direction, traveling instead to the west. this change in direction is known as retrograde motion. what is retrograde motion an example of? choose 1 answer: a actual motion b apparent motion

Explanation:

Retrograde motion is an optical illusion. Planets don't actually reverse direction. It occurs due to the relative motion of Earth and the other planets in their orbits around the Sun. So it is an apparent motion.

Answer:

B. apparent motion