The Design of Pre-Columbian Indian Villages Indicates Which of the Following

The design of pre-Columbian Indian villages indicates which of the following?

A) These societies had an extensive trade network with one another.
B) Native Americans once had a common culture because there are no differences among the villages of hunter-gatherer societies, agricultural societies, and fishing societies.
C) The design of Indian villages around a central place of worship indicates that, although widely separated, all Indians had the same religious beliefs.
D) The defensive design of villages indicates that North American Indians fought with each other long before the arrival of Europeans.