Which one of the following countries is not a member of the Commonwealth of Independence States (CIS)?
- AArmenia
- BBelarus
- CEstoniaCorrect
- DGeorgia
Explanation
Estonia is the correct answer because it is one of the three Baltic states, along with Latvia and Lithuania, that chose not to join the Commonwealth of Independent States after the dissolution of the Soviet Union in 1991. Instead, these nations focused on integrating with Western Europe and eventually joined the European Union and NATO. Armenia and Belarus are current members of the CIS. Georgia was a member but officially withdrew in 2009 following its conflict with Russia. Therefore, Estonia has never been a member of the organization.

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