Can someone help ? no links please and i'll give the best answer brainliest What is the type of Economy that has free market principles, but the government can make rules and regulations for businesses and individuals to follow.

Which of the following policies is an example of a command-and-control policy? a. subsidies to education b. maximum levels of pollution that factories may emit c. tradable pollution permits d. none of the above is an example of a command-and-control policy.