Portugal.
Portugal and Spain had divided the Western Hemisphere, Portugal controlling Brazil being one of the countries they had gained land of. Spain had parts of present day United States (Texas, California, etc).
Hope this helps!
The answer is B. Celts.
- - -
Celts believed that collecting heads after a battle was one of the greatest honors. Heads were their trophies.
I had a test with a question like this but we had options and I put answer D. Gunpowder. And it was right so idk about u