Which of the Following Effects Is One of the Predictions

Which of the following effects is one of the predictions made by models of our Solar System that include planetary migration?

A) Jupiter has four large moons, with the rest being smaller asteroid-sized objects.
B) Mars was a large asteroid that got bigger due to material from Jupiter.
C) The orbits of the inner terrestrial planets became stabilized, allowing them to reside near or in the habitable zone for life.
D) Pluto would have formed near Earth, but was knocked into a much large orbit.
E) Uranus and Neptune prevented harmful debris from entering the inner solar system.