Concept:OPEC was founded in 1960 by five countries.
Explanation:The founding members of OPEC are Iran, Iraq, Kuwait, Saudi Arabia, and Venezuela.
These five nations established the organization in Baghdad in September 1960.
Algeria, Nigeria, Libya, and others joined later as additional members.
Therefore, the correct grouping among the options is Saudi Arabia, Iran, Iraq, Kuwait, and Venezuela.
Answer:D. Saudi Arabia, Iran, Iraq, Kuwait and Venezuela