Which of these island countries is located in the Caribbean?

Barbados is an island country located in the Caribbean. This answer is correct because Barbados is a sovereign nation and a member of the Caribbean Community (CARICOM). It is situated in the eastern Caribbean Sea, approximately 100 kilometers east of the Windward Islands. The country consists of one main island, also called Barbados, and is known for its beautiful beaches, vibrant culture, and strong ties to the Caribbean region.