Uranus' Large Axial Tilt Is Thought to Be the Result

Multiple Choice

Uranus' large axial tilt is thought to be the result of:

A) the same orbital irregularities that led to the discovery of Neptune.
B) a single collision or impact event early in the solar system's history.
C) the captures of one or more of Uranus' moons.
D) giant planet migration.
E) multiple catastrophic events, such as glancing collisions.