What did Roman theaters look like?

Roman theatres derive from and are part of the overall evolution of earlier Greek theatres. ... However, Roman theatres have specific differences, such as generally being built upon their own foundations instead of earthen works or a hillside and being completely enclosed on all sides.

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.