Answer:
A - the tribute system that required conquered settlements to make regular payments of food and services (correct on my quiz)
Step-by-step explanation:
The Aztec emperor Montezuma and his predecessors had been collecting tribute from the surrounding settlements for centuries. This tax or payment could be paid in gold or other metals, food crops, or slaves. After conquering the region, the Spanish continued the tribute system as a way to make themselves rich and keep the native population weak.