What are reputable sources for an argumentative essay about the free enterprise system? Check all that apply.

commercial websites from entrepreneurs selling products

government-sponsored websites about a market economy

university websites that explain several economic systems

primary sources that focus on the history of the economy

blogs written by students who are studying economics

The two best sources for such an essay would be the university website and the primary sources on the history of the economy. University websites are typically written by people who are knowledgeable in the field and have made it their life's work to understand the subjects they're discussing. Also, the primary sources on the history of the economy would be reputable because they are first-hand accounts and not taken from some other source.