In contrast to Adams’ peaceful approach, the Sons of Liberty protested the Stamp Act by

The correct answer is C: threatening others with acts of violence.

The Sons of Liberty, formed to resist the Stamp Act, often employed intimidation and sometimes violent tactics to protest against British taxation and policies. They sought to enforce their opposition by threatening stamp distributors and engaging in violent demonstrations, contrasting with more peaceful approaches advocated by figures like John Adams. If you’d like to explore this topic further, feel free to check the extended services page for more in-depth assistance!