Sorry im late for this one. If you still need this question, the answer you're looking for is The Radical Republicans in the Senate opposed Lincoln’s Ten Percent Plan and demanded that Confederate states be punished for their rebellion against the Union.
B. "At the time of Lincoln’s death, Arkansas, Louisiana and Tennessee had successfully been readmitted to the Union under the Ten Percent Plan."
Is actually the correct answer. I took the test and this was the correct one.