How did the Great Migration affect life for African Americans in many industrial cities?

African Americans were welcomed in the cities, where there was a surplus of wartime factory workers.
The African American population grew quickly, leading to discrimination and race riots in some cities.
Most African Americans, facing harsh conditions and unemployment, left the cities and returned to the South.
Few African Americans found jobs in the cities due to the increase of women workers and immigrant workers.

Question

How did the Great Migration affect life for African Americans in many industrial cities?

 African Americans were welcomed in the cities, where there was a surplus of wartime factory workers.
 The African American population grew quickly, leading to discrimination and race riots in some cities.
 Most African Americans, facing harsh conditions and unemployment, left the cities and returned to the South.
 Few African Americans found jobs in the cities due to the increase of women workers and immigrant workers.