According to President Lincoln's plan for Reconstruction, which of these would need to happen before a former Confederate state could be readmitted to the United States?

A. The state needed to take away voting rights from former Confederate leaders.

B. Ten percent of the state's voters needed to pledge to be faithful to the Union.

C. The state needed to give 40 acres and a mule to every freed slave.

D. Fifty percent of the state's voters needed to be freed slaves.