Help!! Why were internment camps established in the United States?

A. to isolate people protesting the war
B. to provide homes for temporary farm workers
C. to train workers in new industrial skills
D. to isolate people believed to be threats

Opposition to the nra came to a head in 1935, when the conservative supreme court declared the agency unconstitutional, claiming the nra gave the executive branch regulatory powers that belonged exclusively to congress. this decision began a series of court decisions that overturned key elements of the new deal.

My best answer is the haudenosaunnee or the iroquois.