HELP PLEASE NEED NOW! Which of the following best describes the United States?

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