The most accurate response that explains the crucial elements of each civilization is:
The Roman Republic’s senate and assemblies were crucial for decision-making. The Inca Empire’s administrators helped the king keep order and law in different territories, no matter how large the empire was. The Mayan civilization had city-states that were less centralized than either the Republic or Inca Empire.
This option effectively highlights the key aspects of governance for each civilization: the collaborative decision-making in the Roman Republic, the administrative structure of the Inca Empire, and the decentralized nature of the Mayan city-states.