The correct answer is Oil and Steel.
The raw materials that the United States produced more of during the WW II than any other country were Oil and Steel.
During War World II, the oil and Steel were bare necessities for the nations on war. Countries in conflict needed those raw materials to wage war. No country had the luxury to ran out of oil, for instance. That is why the main suppliers of oil along with the United States were Russia, Mexico, Rumania, Irak, Persia, and Austria.
