Answer :
The agricultural tool/method that led to increased food production and specialization for the Teotihuacan people was the use of chinampas or floating gardens.
What are chinampas' or floating gardens?
Chinampas or floating gardens were the engineering products of the Teotihuacan of Aztecs, who built small, stationary, and artificial islands on freshwater lakes for agricultural purposes.
According to history, the Chinampas or artificial agricultural lands floated on the water as the canals surrounded the chinampa plots with a drainage system developed alongside.
Thus, the Chinampas helped the Teotihuacan to increase their food production.
Learn more about the chinampas or floating gardens at https://brainly.com/question/1408678