Answer: C is correct
Explanation: Adam Smith was a representant of Enlightenment and Enlightenment not only promoted rationalism but also freedom. Adam Smith is one of the most important promoters of free trade and his argument ....free trade is good for everyone...1) those who make goods, 2) those who buy good, 3) for all the society. In his times free trade was common, so England following his ideas became quite revolutionary country. European continent started following his principles much later in the 19th century ......Germany (before becoming Germany united under Prussia) applied his principles of free trade when introduced "Zollverain" in German Confederation in 1830s.
