Which plan was now going to be used to bring the south back into the United States of America?

is it this?

Explanation:President Lincoln's Ten Percent Plan was intended to quickly readmit Southern states back into the Union without malice. As long as 10% of a state's voters swore an oath of allegiance to the United States, they could form a new government.

b or c im pretty sure

i am from flvs and in 8th grade what do you need