Located in South America’s Andes Mountains in the area of present-day

Located in South America’s Andes Mountains in the area of present-day Peru, the Inca Indians built many roads. Inca society was:

a. the first to adopt the concept of zero
b. warlike, and the empire was centered in present-day Mexico City
c. organized into urban centers, each ruled by a group of priests
d. the largest Indian empire with a kind of welfare system for the poor

ANSWER
D