the answer is A.) anthropological.
In ancient history, civilizations did not have definite boundaries as states have today, and their borders could be more accurately described as frontiers. Early dynastic Sumer, and early dynastic Egypt were the first civilizations to define their borders. Moreover, for the past 200,000 years and up to the twentieth century, many people have lived in non-state societies. These range from relatively egalitarian bands and tribes to complex and highly stratified chiefdoms.