Answer: Faced with mass starvation among his people, Sitting Bull finally returned to the United States and surrendered in 1883. ... Someone fired a shot that hit one of the Indian police; they retaliated by shooting Sitting Bull in the chest and head. The great chief was killed instantly.
Explanation:
Decolonization allowed a nation to establish and maintain independent territories.
I looked, I can't answer this without a pic of some artical
They did not have the most advanced military equipment.
There was a lack of unity among members of various groups.
They were weakened by trade restrictions and blockades
Most likely B because they only take a few cases a year that is nationally debated