A. someone who signs on to learn a trade or job from an expert
Answer:
Emile Durkheim
Explanation:
Emile Durkheim work primarily focused on how people can remain moral where social traditions and religious ties are not assumed. He made sociology be accepted as a legitimate science.
His theories were based on the concept of structural functionalism. He believed that social science needs to study the actions of the masses of people and not the individual.
Hence, the question is referring to Emile Durkheim.
To determine the patterns of trade between the two countries, we need to compare their respective opportunity costs of producing the two goods. A country will have a comparative advantage in the production of a good if it has the lower opportunity cost as compared to its trading partner.