Answer:
A. keeping Confederate states from rejoining the Union
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.
The Radical Republicans had three main goals.
First, they wanted to prevent the leaders of the Confederacy from returning to power after the war.
Second, they wanted the Republican Party to become a powerful insti- tution in the South.
Third,they wanted the federal government to help african americans achieve political equality by guaranteeing their rights to vote in the south.