4.) of all these organizations below, which can be best described as a supranational political organization on an international scale?
a. The African Union
b. The European Union
c. The United Nations
d. The North Atlantic Treaty Organization

The correct answer is C. The United Nations.

Explanation

The United Nations is the most important international supranational political organization in the world. It was created in 1945 after the Second World War to maintain international peace and security, take a neutral mediating position to promote friendly relations and cooperation between nations. This organization includes most of the countries of the world. So the correct answer is C. The United Nations.