The Aetolian and Achaean Leagues Differed from Previous Greek Attempts

The Aetolian and Achaean Leagues differed from previous Greek attempts at political organization between poleis because:

A) they represented a real political unification, with some centralization of government functions.
B) they were military rather than true political alliances.
C) they required their members to contribute taxation to a common fund.
D) they included Macedonian cities.
E) they were controlled by the Macedonian royal house.