What Makes Some Astronomers Think That Uranus Was Hit by a Large

Multiple Choice

What makes some astronomers think that Uranus was hit by a large body early in its history?

A) It goes around the Sun in a direction opposite to the other planets.
B) Its rotation axis has such a large tilt with respect to its orbit.
C) Its composition is so different from those of Neptune, Jupiter, and Saturn.
D) It has no moons.
E) All of these choices are correct.