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.

[Q]: Category: ART 
Clue: The "Thinker" guards the entrance to the Philadelphia museum devoted to this sculptor
[A]: rodin


[Q]: Category: EUROPEAN DINING 
Clue: It's said the Witchery by the Castle, on Castle Hill in this Scottish city, is haunted by several ghosts
[A]: edinburgh


[Q]: Category: DAVES OF OUR LIVES 
Clue: In December 2005 an estimated 13.5 million late-night viewers tuned in to see him welcome Oprah to his show
[A]:
david letterman