Based on the clue '3 of the 4 states whose names come from the first ...', what is the answer?

Based on the clue '3 of the 4 islands that make up the greater antill...', what is the answer? Based on the clue '3 of the 4 people to have assassinated a us presid...', what is the answer? Based on the clue '3 of the 4 quarters that make up the old city', what is the answer? Based on the clue '3 of the 4 star wars movie characters with darth i...', what is the answer? Based on the clue '3 of the 4 vital signs to be monitored according t...', what is the answer? Based on the clue '3 of the 4 williams', what is the answer? Based on the clue '3 of the 5 founding members of opec', what is the answer? Based on the clue '3 of the 5 main cities of the 13 colonies', what is the answer?