Concept:The European Union is an economic and political union of member countries.
Explanation:Its main economic objective is to create a single market among members.
This is achieved by removing trade barriers such as tariffs and quotas.
Free movement of goods, services, capital, and people is promoted within the union.
Eliminating drug addiction, encouraging migrant workers, and fighting child abuse are not core EU objectives.
Answer:B. eliminate tariffs and quotas among member countries