Which of the following is an OPEC country?
Which of the following is an OPEC country?
[A]Russia
[B]Kazakhstan
[C]Brazil
[D]Nigeria
Nigeria
Organization of the Petroleum Exporting Countries (OPEC) is an intergovernmental organization of twelve oil-producing countries made up of Algeria, Angola, Ecuador, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, the United Arab Emirates, and Venezuela.