Multiple choice Which contributed most to the Great Migration of African Americans to the North? decreasing numbers of agricultural jobs in the South improved transportation systems in the North overcrowded conditions in southern cities labor shortages in northern cities Reveal answer Fill a bubble to check yourself D Correct answer Explanation The Great Migration was primarily driven by the 'pull' of industrial jobs in Northern cities, which faced labor shortages due to the cessation of European immigration during World War I and the expansion of war-related industries.