Which of the following statements best describes the reason for the large migration of African-Americans from the south to the north during the 1920s?

Question

a. This movement was just a continuation of the same trend that had been occurring in large scale since the end of the Civil War.
b. African-Americans moved north to reunite families that had been divided during the many years of slavery.
c. The African-Americans who had worked in the south had mostly been employed in the manufacturing sector, which suffered a downturn in the 1920s.
d. Employers in the North who had traditionally hired European immigrants had to search elsewhere when immigration restrictions were imposed.

Answer 1

d. Employers in the North who had traditionally hired many immigrants had to search elsewhere when immigration restrictions were imposed.