Which is the BEST example of a cartel currently operating in the world economy?
AThe European Union
BThe World Trade Organization (WTO)
CThe North Atlantic Treaty Organization (NATO)
DThe Organization of Petroleum Exporting Countries (OPEC)
AThe European Union
BThe World Trade Organization (WTO)
CThe North Atlantic Treaty Organization (NATO)
DThe Organization of Petroleum Exporting Countries (OPEC)