What best explains why the emperor gave Aztec nobles power to rule over conquered lands?

The emperor granted Aztec nobles power to rule over conquered lands primarily to ensure loyalty and maintain control over these territories. By empowering local leaders, the emperor could leverage their established influence and knowledge of the region to facilitate governance and reduce resistance. This strategy also helped integrate conquered peoples into the Aztec Empire, promoting stability and fostering economic productivity through local administration. Ultimately, it was a pragmatic approach to managing a vast and diverse empire.