Question

inca civilization was structured as
a coalition of independent city - states.
a large empire with one ruler.
tribes unified under one religion.
tribute states under a central authority.

Explanation:

The Inca civilization was a large empire with a single ruler (the Sapa Inca) who had centralized control over a vast territory. A coalition of independent city - states is more characteristic of civilizations like Ancient Greece. Tribes unified under one religion doesn't accurately describe the Inca's political structure. Tribute states under a central authority is more like the Aztec Empire's structure with its tributary system, while the Inca had a more direct imperial rule with the Sapa Inca at the top.

Answer:

B. a large empire with one ruler.