The U.S. State of South Carolina and Columbia.
Usually rivers were the important factor here. When you had control over the rivers you could control who traded who and so on. There more rivers you had in your territory the better for you. Everyone could use roads yes, but rivers allowed the big shipments on ships and boats to be transported from one place to another!
The slaves ships brought in weapons and fabric from Europe and sold them to Warlords and slave traders, crew, locals in ports of Africa.
Second blank: raw materials, finished products equipments.
Answer:
I'm pretty sure it was the United states because I dont think any other country used people for slaves
The answer is A. General Custer found gold in South Dakota :)