What Was the Impact of Expansion and Conquest on the Aztec

What was the impact of expansion and conquest on the Aztec social system?

A) Aztec society became more hierarchical.
B) Conquest opened up Aztec society to incursions by the indigenous peoples who began to form a trained bureaucracy.
C) Aztec society was transformed in the sense that the Mexica adopted the social patterns of the Maya.
D) Despite the stress of warfare and invasion, the Aztec society remained remarkably unchanged by the process.