Which of the following best describes the United States? (3 points) Select one: a. It has a market economy with no government regulation. This is the only system that can work with a government run by the people. b. It has a command economy. A large nation like the United States needs the government to control all growth of business to prevent problems. c. It has a traditional economy. Most communities are focused on providing their own needs with the resources available in the local area. d. It has a mixed economy. The government protects individual rights, such as minimum pay for work and choices in goods and services.