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: "H"ISTORIC PEOPLE 
Clue: Until 1876 his father Alois, who was illegitimate, used his grandmother's name, Schicklgruber
[A]: adolf hitler


[Q]: Category: MOTHER GOOSE 
Clue: It's the type of nail referred to in the nursery rhyme "All for Want of a Nail"
[A]: a horseshoe nail


[Q]: Category: WASHINGTON, D.C. 
Clue: The Freer Gallery boasts a major collection of this artist's works, tho his "mother" hangs in the Louvre
[A]:
whistler