A. The vice president automatically assumes the presidency.
Although it would only be until the President has recovered, the Vice President would become the Acting President as long as the President was unable to fulfill his duties.
Plessy v. Ferguson, the separate but equal law which segregated schools under the idea of separate but equal but of course wasn’t equal. P v. F was the case btw.
Lincoln recognized that the Emancipation Proclamation would have to be followed by a constitutional amendment in order to guarantee the abolishment of slavery. The 13th amendment was passed at the end of the Civil War before the Southern states had been restored to the Union and should have easily passed the Congress