The correct answer is B. The americas
The Americas provided raw materials that were taken to Europe. Europeans manufactured goods from these materials and traded them to Africans in exchange for slaves. Slaves were then taken to the Americas to get new raw materials. That's how the triangle worked.
Loyalty to their country and people
The President who represents the nation
B. Johnson. Andrew Johnson wasn't even the vice president Lincoln wanted, but he helped him win the second election.