Answer: C. Radical Republicans were less willing to allow former Confederates to participate in government.
Step-by-step explanation:
Radical Republicans were so called because they advocated radical policies based on the socio-political landscape at the time in calling for an immediate, permanent and uncompensated end to slavery.
They were very opposed to former Confederates such as officers and politicians joining Congress or any other form of government so as not to give them the chance to implement confederate policies.