How Did the Results of the Peloponnesian War Pave the Way

How did the results of the Peloponnesian War pave the way for Macedonia's domination of Greece?

A) Greek city-states began fighting among themselves.
B) War became a major Greek industry.
C) The myth of Spartan invincibility was dispelled.
D) Some Greeks concluded they were incapable of self-government.
E) Thebes eclipsed Athens as the preeminent city-state.