The correct answer is D. Oil.
Step-by-step explanation
Oil is a natural resource that is produced as a result of physical-chemical processes that occur in the lower layers of the earth, where the fossils of ancient organisms were trapped, after years those fossils are exposed to the high pressures of superior layers of the crust, producing oil. This natural resource can be extracted by humans through machines and is used for the production of gasoline and other products. The Middle East is a region known for having the largest number of oil sources, which has caused confrontations between countries, foreign intervention, and great profits for these countries, a sample of these gains are the large buildings and eccentricities that are seen in the Arab Emirates like the city of Dubai. So, the correct answer is D. Oil