Which of the following was a belief held by progressive reformers? a. america should take new territory from mexico. b. regulations weren't needed to run an efficient economy. c. the spoils system was a great way to run government. d. big businesses should be regulated by government to small businesses. mark for review (will be highlighted on the review page)

The correct option is D.
The progressive reformers are those social activists whose main objective is to eliminate problems caused by industrialization, urbanization, immigration and corruption in government. The progressive reformers are the first set of people to address the problems that arise from industrialization.They believe that big businesses should be regulated by the government so that they can take of the small businesses.