Answer:
During the Progressive Era, political leaders instituted policies designed to empower average Americans and curtail the power of large business interests. In the course of US history, the pendulum has swung between increasing government regulation of big business and leaving it free to grow as it will. In your lifetime, what decisions has the government made about increasing or decreasing this type of regulation? What have been the effects of those decisions? Compare the issues and outcomes to those of the early twentieth century decisions to regulate big business in the Progressive Era. You might also consider whether the media serve a similar "muckraking" role in causing this pendulum to swing one way or another
The 1860 presidential election
states’ rights
The circular flow model is one example or the best model demonstration of explaining or show the model of producers and consumers in how they influence one another using the system of free market. This simplifies and shows the process of how consumers and producers affect one another.
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C. Would be the correct answer.