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.

[Q]: Category: CLASSICAL MUSIC 
Clue: Mendelssohn's "Songs without Words" were once the most popular pieces for this instrument
[A]: piano


[Q]: Category: SHAKESPEARE 
Clue: "As You Like It" is partially set in the forest of this
[A]: arden


[Q]: Category: AUTHORS 
Clue: Roman Polanski's film "Tess" was based on his novel "Tess of the D' Urbervilles"
[A]:
thomas hardy