Answer:
Great Britain is the answer
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
The answer is C, I am not sure what the "whig" party is, I assume it is referring to the republican party.
