A) regulates the oil production and supply on the world's market
In the short term, the Organization of Petroleum-Exporting Countries (OPEC) has significant influence on the price of oil. ... For example, if OPEC countries are unsatisfied with the price of oil, it is in their interests to cut the supply of oil so prices rise.
Rising prices in the economy
The correct answer is Author Zimmermann.
The main responsibility of the United States State department is to handle foreign affairs.
It been at least 15 years