According to Our Theory of Solar System Formation, Why Do

According to our theory of solar system formation, why do we find some exceptions to the general rules and patterns of the planets?

A) Our theory is not quite correct because it cannot explain these exceptions.
B) Most of the exceptions are the result of giant impacts or close gravitational encounters.
C) The exceptions exist because, even though our theory is as correct as possible, nature never follows rules precisely.
D) The exceptions probably represent objects that formed recently, rather than early in the history of the solar system.
E) The exceptions probably represent objects that were captured by our solar system from interstellar space.