What was the columbian exchange? native americans brought diseases to the europeans for which they had no immunity. native americans taught european travelers where to search for gold. a transfer of people, products, and ideas occurred between the hemispheres. french voyages between the eastern and western hemispheres took place.

Option: Congress asked President Johnson to take control of Reconstruction.

Explanation:          

After the Civil War in America, slaves became free. With the rectification of the 13th Amendment allowed slavery to abolished from America. But the new changes were not seen as a good for the White Southerns because they believed that African Americans were to be controlled and regulated rather than setting them free. The South issued sets of Black Codes called Jim Crow Laws to separate African Americans from the whites. Black Codes were a  part of the plan of the Southern white to maintain political power and crush the slaves. Congress was not pleased about these codes because it was worse than slavery. Congress asked President Johnson to take control of Reconstruction.