To bring the southern states back into the union, president johnson planned to
a make it easy and painless.
b make it tough and painful.
c harshly punish the southern states.
d slowly reinstate southern governments.

I think the answer might be C? Sorry if that's incorrect.

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.