You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.

Category: "B" & "O" 
Clue: They play home games at Camden Yards
baltimore orioles

Category: NAMES OF THE 12 APOSTLES 
Clue: Shared with a 4th century B.C. king of Macedonia
philip

Category: GREAT BRITS 
Clue: He joined the British navy at age 12 & died at the Battle of Trafalgar 35 years later

lord nelson