Which statement best shows how the Maya operated within their empire?

The Mayan Empire had no central leaders but was connected through trade.
Mayan cities chose to only trade within their city-state to boost their local economies.
The Mayan Empire was decentralized with city-states often in conflict with one another.
Mayan city-states were connected under the rule of one king.

The Mayan Empire was decentralized with city-states often in conflict with one another.