Answer:
The correct answer is B. Classical economics is the idea that free markets can regulate themselves.
Step-by-step explanation:
Classical economics is an economic school that emerged in the eighteenth century and was the dominant trend within economic science for much of the nineteenth century.
With the rise of classical economics, economy became an independent scientific area for the first time. The ideas of the classics are largely in line with economic liberalism and are based on the ability of free markets to regulate themselves.
The precise definition of the traditional economy is not certain, but Adam Smith and David Ricardo are usually its most important representatives.