Answer:
The Maya were not a unified empire.
Step-by-step explanation:
An empire can be considered as "Unified" if every people of that empire follow one central authority that determine the actions/legislations that the empire need to take.
In a society that's control by several Kings, this is almost impassible to achieve.
Each kings will have a really strong influence within their controlled region. Often times, they would not always share the same opinion. As a result, it will be difficult for Mayan society as a whole to give one shared unified response toward the issues that they have to handle