Answer: C. Radical Republicans were less willing to allow former Confederates to participate in government.
Step-by-step explanation:
Radical Republicans contributed a great deal to the abolition of slavery in the United States because they pushed for an immediate and permanent end to slavery and it was them that rammed the Fourteenth Amendment through Congress.
Radical Republicans opposed plans to reintegrate the Confederate states so easily and were more especially against former confederate officers and supporters joining Congress or participating in any form of government as they believed they would work to implement Confederate policies.