After the Conclusion of the Civil War, the U

After the conclusion of the Civil War, the U.S. government rewarded the Union support provided by most of the Plains Indians by

A) giving them federal land in California.
B) increasing their federal payments.
C) allowing them to elect representatives to Congress.
D) making them scouts for the U.S. Army.
E) waging war on most of the Plains Indians and coercively herding them onto reservations.