The jim crow era directly followed what period in u. s. history?

The answer for PLATO users is:

B.)

Reconstruction.

Reason:

The Jim Crow was after the reconstruction initiatives ended and when people stopped caring about African-American rights. The racist organizations such as KKK who had large influences on the people and on the local governments used this to impose their own segregation laws that were bad for the African-American population.

britian is way too advanced for me my good luck

i believe it was spain