I believe the answer to your question would be A. Western European Capitalistic Country, Hope this helps a bunch :)
I think it's B because all the slaves in the south were growing cotton
I believe it is true, I think what your asking is related to the United Nations
Simple. The Columbian Exchange exchanged diseased, people, plants, food, and animals. The Americas adapted with new plants and animals like cattle, chicken, etc., and more slaves. Europe gained potatoes, tomatoes, corn, squash, punpkin, etc.
New societies could depend on new sources of food, new animals. That also improved their local economy, and knowledge (learning)