From least integrated to most integrated, the levels of economic integration are:Question 9Select one:a.Common market, an economic union, a customs union, a free trade area, and a political union.b.Free trade area, a customs union, a common market, an economic union, and a political union.c.Free trade area, a common market, a customs union, an economic union, and a political union.d.Common market, a free trade area, an economic union, a customs union, and a political union

The correct answer is b. Free trade area, a customs union, a common market, an economic union, and a political union.

Here's why:

1. Free Trade Area: This is the least integrated form. In a free trade area, all trade barriers between member countries are removed. However, each country retains its own trade policies with non-member countries.

2. Customs Union: This is a bit more integrated. In a customs union, all trade barriers between member countries are removed and all members adopt a common trade policy towards non-member countries.

3. Common Market: This is even more integrated. In a common market, all trade barriers between member countries are removed, a common trade policy towards non-member countries is adopted, and factors of production (like labor and capital) are allowed to move freely between members.

4. Economic Union: This is highly integrated. In an economic union, all trade barriers between member countries are removed, a common trade policy towards non-member countries is adopted, factors of production are allowed to move freely between members, and members adopt common economic policies.

5. Political Union: This is the most integrated form. In a political union, all features of an economic union are present and, in addition, the member countries have a common government.