The groups that migrated to the cities after the civil war included large numbers of all of the following groups except? :
a southern blacks.
b southern whites.
c foreign immigrants.
d eastern farmers.

The correct answer is letter B southern Whites. The groups that migrated to the cities after the Civil War included large numbers of all of the following groups includes the southern Blacks, the foreign immigrants, and the eastern farmers. The Southern Whites are the group that didn't migrate.