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 simplicity, answers should be in all lower cased letters.

Category: CALL ME SMITTY 
Clue: Her Armistice Day rendition of "God Bless America" in 1938 introduced the song to the world
kate smith

Category: WHAT SHOULD I "DU"? 
Clue: A philosophical system that seeks to explain all phenomena in terms of 2 distinct principles
dualism

Category: ROBERT LOUIS STEVENSON 
Clue: Stevenson's mother's maiden name, Balfour, was also the last name of the young hero of this novel

kidnapped