The main reason that Lincoln pushed for passage of the Thirteenth Amendment was because he required its ratification for Southern states to be readmitted to the Union.
What is the Thirteenth Amendment?
It is a federal legislation that was passed in 1865 which abolished slavery in the United States and provides that "Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States
The enactment of tyhe 13th Amendment was necessary because the Emancipation Proclamation that was issued by President Abraham Lincoln in January of 1863 did not end slavery entirely as those enslaved in border states had not been freed.
Hence, the main reason that Lincoln pushed for passage of the Thirteenth Amendment was because he required its ratification for Southern states to be readmitted to the Union.
Therefore, the Option A is correct.
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