Answer:
D ) "Equality of all citizens should be protected by the law."
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 main reason why historians consider political cartoons to be credible resources in historical inquiry is because they present a picture of usually was popular opinion at the time--regardless of whether or that opinion is exaggerated or not.
