How might Reconstruction have been different if Lincoln had not been a

How might Reconstruction have been different if Lincoln had not been assassinated?

a. African Americans might have gained political and economic rights sooner, since Lincoln was a strong supporter of equal rights for all Americans.
b. Terrorist groups like the Ku Klux Klan would not have developed in the South.
c. Women would also have gained the right to vote, since Lincoln would have encouraged this in the Fifteenth Amendment.
d. Lincoln would have refused to allow any former Confederates to participate in Republican government.
e. Since Lincoln had showed some flexibility with Congress before, it is possible that he could have worked with the Radical Republicans on a compromise plan.

ANSWER
E