Yea the correct answer here definitely is D.
If Germany had won the War the British Empire would have surely crumbled. They would either had to accept less then favorable terms of defeat like Germany did in the World War I or even force they would become occupied by the Nazi German forces and the British would had to live under the German boot.
Answer:
Northerns who moved south during the reconstruction were called Carpetbaggers.
New York, New Jersey and Pennsylvania are states in the Highland region.
From what I can recall, the Adams-Onis Treaty more or less gave Florida to the U.S. but it did not exactly end the Second Seminole War, which can be made obvious with the fact that there are Seminoles still living in Florida. I don't remember the Treaty having anything to do with the British since this treaty was between Spain and the U.S.
Basically, I believe the answer is B.
The answer it’s number 4 “implied power”