The Organization of Petroleum Exporting Countries (OPEC) is an example of a? by Sunday | May 25 | Economics WAEC | 0 comments A. perfect competition B. monopsony C. duopoly D. cartel Correct Answer: Option D D. cartel Users Also Read These:The five countries that established the Organization…Which of the following roles is being played by the…Nigeria joined the Organisation of Petroleum…The organisation of petroleum exporting countries…The headquarter of the Organization Of Petroleum…