What Were "War Relocation Camps

What were "war relocation camps"?

A) They were bases that housed American servicemen before they were sent to the front lines and joined European troops.
B) They were prisoner of war camps for captured Germans in Europe that used brutal tactics and had terrible conditions.
C) They were the German euphemism for Nazi concentration camps, as no American officials were aware they existed.
D) They helped the families of American servicemen cope with the absence of husbands and fathers and provided a sense of community.
E) They were essentially internment camps for over 100,000 Japanese Americans during the war due to racial and fear-based prejudice.