Which of these statements best explains how the Five Tribes changed because of outside

Which of these statements best explains how the Five Tribes changed because of outside influence? A. The tribes often resisted assimilation but adopted many new customs in the end.
B. The tribespeople were traditionalists who refused to leave their way of life.
C. The tribes quickly and openly accepted all changes to their culture.
D. The tribes enthusiastically supported government programs that called for assimilation.