I believe it is because that is where jobs were, and where family and friends were.
It was horses and buffalo. Horses they used to collect stuff they needed, carry stuff, go hunting with. Buffalo is what they hunted constantly and ate. and used their skins for blankets or clothes.
The answer is mostly likely a or b I would go with B
Answer:
It provided practical aid to 4,000,000 newly freed African Americans in their transition from slavery to freedom.
Explanation:
It brought an end to the war
