Answer:
C self-interest in a free market to thrive.
Step-by-step explanation:
Adam Smith (1723-1790) was a Scottish philosopher and political economist and one of the fathers of laissez-faire economics. He is the author of the famous work An Inquiry into the Nature and Causes of the Wealth of Nations. Smith is a supporter or free markets, arguing that the best economic system is one based on individual self-interest that in the end, will produce good to all. Smith maintained that such an economy will correct its deficiencies by "the invisible hand" of the market.