Which accomplishment most likely helped the Incan emperor maintain rule over widespread lands?

A The Inca built a vast network of roads
B The Inca developed a uniform system of writing
C The Incan emperor claimed ownership of all land
D The Incan emperor requires all subjects to serve in the army.

My answer is D

its A) The Inca built a vast network of roads.

I really hope you ace this test :)

The Inca emperor claimed ownership of all land

To determine which accomplishment most likely helped the Incan emperor maintain rule over widespread lands, we can analyze each option and see how it relates to effective governance and control.

A) The Inca building a vast network of roads (option A) would have certainly facilitated communication and trade within the empire. However, while it may have helped maintain order and infrastructure, it alone may not have been enough to guarantee the Incan emperor's hold on power over widespread lands.

B) The development of a uniform system of writing (option B) would have been valuable for record-keeping and administrative purposes. However, since the Incas did not possess a writing system, this option is not applicable to their rule.

C) The Incan emperor claiming ownership of all land (option C) could have played a significant role in maintaining control. By asserting ownership over all land, the emperor can control the distribution and allocation of resources, which in turn helps cement his power and authority. However, it is not specified that this was an actual accomplishment of the Incan emperor, so we cannot definitively say it was the most likely factor in maintaining rule.

D) Requiring all subjects to serve in the army (option D) is a plausible answer. A robust military force controlled by the emperor enables the suppression of rebellions or uprisings, helps enforce laws and regulations, and solidifies the emperor's authority. This option aligns with historical practices of ancient empires and seems most likely to have contributed to maintaining rule over widespread lands in the Incan empire.

Therefore, option D, "The Incan emperor requires all subjects to serve in the army," is the most likely accomplishment that helped the Incan emperor maintain rule over widespread lands.

I disagree. Which of those answers show how the emperor could keep control over large areas?