The Answer is D: separation of powers among different branches of government
The main way in which the study of the classics influenced branches of learning such as history, literature, and philosophy was that many of the greatest thinkers in these subjects lived in the classical age.
ANSWER IS C.
EXPLANATION because they were separated by transportation, housing and water fountains and the question asked EXCEPT
Answer:
He feared retaliation from the border states, which supported slavery.