Which statement describes the service of Native Americans in World War I?

well michelle wanted to measure the height of her school's flagpole she placed a mirror on the ground 48 feet from the flagpole then walk backwards until she was able to see the top of the pole in the mirror her eyes were 5 feet above the ground and she was 12 ft from the mirror using similar triangles find the height of the flagpole to the nearest tenth of a foot find the geometric mean of them pair of numbers so yeha lol

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;

d) iowa i believe is the answer