Answer:
A. Teotitlán.
Step-by-step explanation:
The Aztec empire had two types of provinces, Core and the Tributary States. The Core states were subordinates that provided tribute or aid to the Aztec empire under mutual consent. While the tributary states provide a mandatory tribute to the empire.
On the other hand, the Aztec empire had allies that helped them to rule the area, however, Tenochtitlan was the most influential and powerful of the cities.
I hope this answer helps you.