3. what encouraged progressives to fight for reform?

Mainly what encouraged progressives to fight for reform was unfair business practices, politics which involved bribery and corruption, and the monopoly of businesses and politicians.

Explanation:

Progressives wanted to fight for American rights. They believed the government should take radical actions to make society better for its people.

They believed that people were not getting their due rights as the government had promised. Urbanization and industrialization had forced the people to work like machines. Moral and ethically they found the conditions of the people in a society demeaning.

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