The answer is B. Sitting Bull.
He is seen as the central leader, however there were others Chiefs, primarily Crazy Horse.
The declaration of independence
In the early 1900s, Russia was one of the most impoverished countries in Europe with an enormous peasantry and a growing minority of poor industrial workers. ... The emancipation of serfs would influence the events leading up to the Russian Revolution by giving peasants more freedom to organize.
C. The United States did not take territory
