The Creek Nation was a large confederation of tribes and chiefdoms that spanned the area from the ocmulgee river to the Coosa and Tallapoosa Rivers in Alabama.

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.

i believe it was the shinto

the church governed the society after the empire fell.   constantine took charge of rome and ended the confusion which had over religion and made christianity as the only religion and that started ruling the roman empire. he also divided the empire into two and fortified the eastern part.   he ruled the eastern part.