Why was John Brown a controversial figure?

I would say the answer is c.

Explanation:

John Brown remains one of the most controversial figures in our history. To destroy the institution of slavery, he firmly believed there was only one possible course of action. He saw what he thought was the ultimate wrong and tried in the only way he could imagine to right it.

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several states had passed similar laws, but they were limited to intrastate businesses. the sherman antitrust act was based on the constitutional power of congress to regulate interstate commerce.

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