C. Believed immigrants from certain places of origin could not absorb American values.
There was different effects for it. I'm not sure if your question is free response or multiple choice but some effects were: widening the gap between the rich and poor, making inner cities have even worse conditions, the beatniks rose to counter the middle class lifestyle, schools in suburbs were better than the ones in inner cities
I think the correct answer for that would be to B.Declare War
I dont know exactly but the new deal lead to Japan getting mad and attacking Hawaii which was the spark that lead to ww2