Adam Smith is known as the Father of Modern Economics and is known as the author of "The Wealth of Nations". According to the passage above, the idea of Adam Smith that made Mark think of starting a restaurant business is self-interest. The correct answer is option B. Self-interest, according to Adam Smith, is when the individual owns the resources available, labor and capital, can make voluntary decisions to control the marketplace. This is the biggest motivator in the activity in the economy.
