Lincoln wanted to make sure that the new state governments in the south

Lincoln wanted to make sure that the new state governments in the south would comply with his policy of emancipation of slaves and be lenient towards them.

Explanation:

As soon as the Civil War came to an end, President Lincoln took up the task of the reunification of the nation. For the states in the south, he prepared the ten percent plan and appealed to the people of the south to take oath of allegiance to the United States, of the emancipation of slaves, and of leniency towards them. Lincoln assured them that once the oath is taken, he would permit each state to frame new Constitutions of their own.

It is c because it shows how the author is stating their own oppinion about the protagonist