Based on the clue '2 of the 3 countries classified as extending acros...', what is the answer?

Based on the clue '2 of the 3 bs of classical music', what is the answer? Based on the clue '2 of the 3 characters named in barrys tragic story...', what is the answer? Based on the clue '2 of the 3 cities that had been home to the team n...', what is the answer? Based on the clue '2 of the 3 colors found in names of the widow spid...', what is the answer? Based on the clue '2 of the 3 countries of the world that begin with ...', what is the answer? Based on the clue '2 of the 3 countries that border mexico', what is the answer? Based on the clue '2 of the 3 countries that make up the benelux econ...', what is the answer? Based on the clue '2 of the 3 countries which today share the region ...', what is the answer?