Answer:
a
Step-by-step explanation:
Lincoln's Proclamation of Amnesty and Reconstruction allowed Confederate states to reunite with Union if 10% of the voters swore allegiance. All members of the Confederacy, except the high rank ones, will be pardoned from their actions.
Congress thought these plans were too easy, so they responded with the Wade Davis bill, making 50% of a Confederate state swore allegiance. Lincoln vetoed this bill, preventing its effects.