D-Day was the Allied invasion of Normandy in France, part of Nazi-occupied Europe. So the answer is Nazi-occupied Europe.
Answer from: Quest
answer; /// i do believe that the correct answer is (a); a farming tribe that settled primarily along the mississippi and arkansas rivers;
Answer from: Quest
its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.