Answer:
Slavery shaped both economic and political system of the United States until the abolishment of slavery with the adoption of the Thirteenth Amendment to the United States Constitution on December 6, 1865.
federalism is the separation of power between the states and government
Alexander the Great (356-323 BCE) of Macedon first follwed in his father’s (King Phillip II) footsteps in subduing the city-states
of Greece and then lead his army on a series of campaigns which
successfully conquered the then-known world from Macedon, through
Greece, down to Egypt, across Persia, to India. Alexander’s tutor was the Greek philosopher Aristotle
(384-322 BCE) and, as Alexander traveled, he spread Greek thought and
culture in his wake, thus "hellenizing" (to make `Greek’ in culture and
civilizaion) those he conquered.
After Alexander’s death his Empire was divided among his four generals - the Diadochi or Successors.
The answer is A. If not A, then B. But if it were me, I'd go with A.
Guinea and Liberia have largely been cut off from neighboring countries by closing their borders and having neighboring countries like Senegal close its borders in response to the Ebola outbreak. In addition Sierra Leone has also had border closures in response to the crisis. In time more border closures could occur as the Ebola virus becomes a larger public health risk.
