Which of the Following Is NOT True

Which of the following is NOT true?

A) By the last decade of the 19th century, most American Indians were on reservations.
B) In the 1920s, the death rate of American Indians was actually higher than their birth rate.
C) American Indians were always citizens because they were the first U.S. inhabitants.
D) Between 1880 and 1930, a majority of the land held by American Indians became owned by Whites.