Answer:
At the same time, they occupied the heart of prime bison range which was also an excellent region for furs, which could be sold to French and American traders for goods such as guns. The Lakota became the most powerful of the Plains tribes.
The answer is D
A good way to remember this is to think about America before or pre-columbus, who came to the americas in 1492.
200 miles, I am sure that this is the correct answer.
Cause scientices need to reason
First of all , most definitely A because its an empire. and B because the emperors like Julius Caesar took power away from the Senate