Which of the following is a major example of Abraham Lincoln's policy of leniency towards the defeated South?

A: President Lincoln's willingness to have the federal government assume responsibility of the Confederate government's war debts
B:President Lincoln's choice to have a southerner as his vice president in the 1864 election
C:President Lincoln's decision that the southern state governments could reorganize after 10% of the voters took a loyalty oath to the Union
D:President Lincoln's decision to extend the Emancipation Proclamation to include all states

in the Union

C: President Lincoln's decision that the southern state governments could reorganize after 10% of the voters took a loyalty oath to the Union