inca civilization was structured as\na coalition of independent city - states.\na large empire with one…

Brief Explanations:

The Inca civilization was a highly centralized empire. It had a single ruler, the Sapa Inca, who held supreme authority. It was not a coalition of independent city - states (which is more characteristic of some ancient Greek or Italian city - state systems). While religion was important in Inca society, it was not just tribes unified under one religion; it was a complex imperial structure. Also, it was not just tribute states under a central authority in the sense that it was a more integrated and developed imperial system with its own administrative, economic, and social structures.

Answer:

a large empire with one ruler.