Final answer:
William Lloyd Garrison was seen as radical in the Abolition Movement due to his advocacy for immediate and unconditional emancipation of enslaved people. Radical abolitionists also sought the end of laws that restricted the rights of free African Americans and pushed for racial equality.
Step-by-step explanation:
William Lloyd Garrison was considered a radical in the Abolition Movement because C) he called for the immediate and unconditional emancipation of all enslaved people. Garrison, known for his strong stances and refusal to compromise, became the voice of immediate abolition through his newspaper, The Liberator. He considered slavery a moral sin and pressed the public and government to bring an immediate end to it rather than gradual or colonizing solutions.
Radical abolitionists like Garrison sought significant changes in American society and government, specifically C) Immediate and unconditional emancipation of all enslaved people. They called for the ending of restrictive laws that curtailed the political and civil liberties of free African Americans, and they advocated racial equality as essential for the moral redemption of the nation.