Great plains is known for the mountains
Stones. Stones were not only the building blocks being used to create pyramids, they served as important tools as well. The two main stone types used in construction were limestone and granite. Low-grade limestone was used in creating the inner walls, while smoother white limestone was used on the outer walls.
B) A small group of citizens controlled things.
The definition of Oligarchy is "<span>a small group of people having control of a country, organization, or institution."</span>
