Which of the following best explains the Aztec Empire’s success in growing its territory?

A. The Aztec sent people from their capital to run the newly conquered territories across the empire.
B. The Aztec forced conquering peoples to sacrifice all of their luxury goods that had high trade value.
C. Alliances and military conflicts led to a large network of tributes that provided materials to enrich the empire.
D. Aztec rulers took the central, most superior role in all alliances, that they formed with conquered peoples.

C. Alliances and military conflicts led to a large network of tributes that provided materials to enrich the empire.