progressive reforms that sought to break up monopolies and limit their power were known as\no free…

progressive reforms that sought to break up monopolies and limit their power were known as\no free enterprise.\no trust - busting.\no unionism.\no restrictive legislation.
Answer
Brief Explanations:
Trust - busting refers to efforts to break up monopolies and limit their power. Free - enterprise is a system of private economic activity. Unionism pertains to labor unions. Restrictive legislation is a broad term and not specifically about breaking monopolies like trust - busting.
Answer:
B. trust - busting