(A) European immigrants fleeing to the U.S. to escape the war in Europe
(B) French refugees fleeing to Britain ahead of the German onslaught
(C) Mexicans fleeing to the American Southwest to escape political turmoil
(D) ** African Americans moving from the South to Northern cities
EXPLANATIONS BELOW
Concept note-1: -The Great Migration was one of the largest movements of people in United States history. Approximately six million Black people moved from the American South to Northern, Midwestern, and Western states roughly from the 1910s until the 1970s.
Concept note-2: -Arguably the most profound effect of World War I on African Americans was the acceleration of the multi-decade mass movement of black, southern rural farm laborers northward and westward to cities in search of higher wages in industrial jobs and better social and political opportunities.
Concept note-3: -World War I intensified the Great Migration, the mass emigration of African Americans from the rural South to the industrial North and Midwest in hopes of escaping the poverty and discrimination of Jim Crow laws.