The countries surrounding the Persian Gulf are the richest in oil supplies. This oil wealth in the Middle East is the main driving force of their economy.
The answer is c. public policy
Hope this helps :D
Http://www.pbs.org/empires/thegreeks/background/9b_p1.html
That's my presentation just to give you an idea of what you are supposed to do please don't plagiarize it thx!
Hope it helps! :-)
