The answer is 4. Someone may disagree that this was his major accomplishment. And the other options are stated as fact
Because they <span>They resent to Aztec who had conquered them and demanded tribute to support the lavish of Aztec cities.
The leader of the Aztec of that time oppressed the member of their group with tyrannical rules. The resentment build up over the years and Cortez saw this as an opportunity to gained new reinforcement armies.</span>
The Minoan Civilization (centered on the island of Crete)