Answer:
b. Free enterprise
Step-by-step explanation:
In a free enterprise system, the economic activities in the country will be determined by the power of supply and demand. A specific type of goods or services will survive if there's enough demands from the customers who are willing to pay for them.
In this system , The government's role is only limited to be the regulator. They only exist to ensure that the competition between enterprises run fairly and prevent any of them from cutting corners. The government own little to none of the resources in the country.