The arab league, an international organization of arab countries, limits the sovereign power of its member states by *

The arab league, an international organization of arab countries, limits the sovereign power of its member states by  Coordinating free trade agreements among member states

These countries control the majority of the Oil market in the world. To maintain the market price of their product, Trade agreements are really important to be imposed within its members.

I’m pretty sure it’s 4, you can check on the calculator