Answer:
I believe the answer is the Columbian Exchange.
Explanation:
D. the exile of Napolean to St. Helena
Founding fathers were believed to be isolationists and decided to concentrate in the development of the homeland.
Explanation:
At the time of America's founding, it was considered to be a weak nation and it was considered itself to be sensitive and vulnerable to encounter itself against the dominating powers of the world. Initially, America focused on developing its own land by building up military might and the ability to defend itself from other countries. Specially it worked upon negating the influence of European countries on America.
Hence America always practiced isolationism and neutrality when it came to wars against Europeans. But America had its own positive points and that is to maintain good industrial relations with other countries.
