Before 1924, What Was the Political Status of Native Americans

Before 1924, what was the political status of Native Americans?

A) They were federal citizens but not citizens of the states in which they lived.
B) They were considered to be foreigners because their tribes were regarded as separate nations.
C) They were considered to be unauthorized immigrants, unless they lived on reservations.
D) They had the same legal status as any other citizen of the United States.
E) They had no political status.