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.
--------
Question: Category: HI, I "Q" 
Clue: It's a synonym for idiosyncrasy

Answer: quirk


Question: Category: ARTISTS & THEIR SUBJECTS 
Clue: Augustus John, known for his portrait of this Welsh poet, introduced the poet to his future wife Caitlin

Answer: dylan thomas


Question: Category: BOOKS & AUTHORS 
Clue: The middle initial of this author of "The Good Earth" stood for Sydenstricker, her maiden name

Answer:
buck