Hi there, I hope you're having a great day!
The answer you are looking for is A. He would keep slavery in place if it meant saving the Union.
Publicly he was against slavery, but he later stated that he would do anything, including keeping slavery for the time being.
I hope this helped! If it did please give me brainliest as this answer took a little bit for me to come to, if you do then I really appreciate you!
Have a brainly day!
-Austin <3
