Answer; B
African-American literature, music and art.
African-American literature, music and art,were the most affected by the Great Migration.
Step-by-step explanation;
When World War I broke out in Europe in 1914, industrialized urban areas in the North, Midwest and West faced a shortage of industrial laborers, as the war put an end to the steady tide of European immigration to the United States.
The desire of black Southerners to escape segregation, known as Jim Crow, prompted them to migrate, as they believed that segregation, racism, and prejudice against blacks was significantly less intense in the North.
As a result of this migration various aspects were affected which includes; African-american literature, music, and art.