I believed it would be b. a presidential executive order during ww2.
explanation:
on february 19, 1942, president franklin d. roosevelt signs executive order 9066, initiating a controversial ww2 policy with lasting consequences for japanese americans. ordered that all foreigners and americans of japanese, descent be confined in concentration camps for the purpose of national security, cleared the way for deportation of japanese americans, made the west coast of the u.s a hostile military zone, and made all japanese americans "enemies of the state."
