for what reason did The Radical Republicans in Congress want to grant voting rights to formerly enslaved people

Answer:
I think first one.
Explanation:
The Radical Republicans believed blacks were entitled to the same political rights and opportunities as whites. They also believed that the Confederate leaders should be punished for their roles in the Civil War.
Answer: B. to gain more votes for the Republican Party. C. to honor the Constitution of the United States.
Explanation
I had put A and B but that was wrong like D and B so The correct answer Is B and C