Which is one way that President Lincoln attempted to make it easy for Southern States to rejoin the Union?

A; Wanted to make all citizens eligible to vote
B; Only wanted 10% of the southern voters to swear allegiance to the US to regain statehood
C; Wanted all states to approve the 13th amendment in order to regain statehood
D; Developed the freedoms Bureau as a way of providing resources to former slaves