Select the Best Answer That Represents the Lowest to the Highest

Multiple Choice

Select the best answer that represents the lowest to the highest level of economic integration.

A) customs union → economic union → free trade area → common market
B) economic union → customs union → common market → free trade area
C) common market → free trade area → economic union → customs union
D) free trade area → customs union → common market → economic union
E) common market → economic union → customs union → free trade area