How does the Organization of the Petroleum Exporting Countries (OPEC) achieve its goal of stabilizing the worldwide price for oil?
A.
by using its vote on the United Nations Security Council to set acceptable prices
B.
by arranging exclusive contracts with private and nationalized oil companies
C.
by setting member production and price of oil on the world market
D.
by purchasing most of the oil available on the market from nonmembers
