Nigeria joined the Organisation of Petroleum Exporting Countries (OPEC) in__________
The correct answer is: A
Explanation
It was on July 12, 1971, that Nigeria became the 11th Member of OPEC.
Nigeria joined the Organisation of Petroleum Exporting Countries (OPEC) in__________
It was on July 12, 1971, that Nigeria became the 11th Member of OPEC.