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: TOYMAKERS 
Clue: In 1997 Mattel sued Miller'$, a magazine devoted to this fashion doll, for copyright infringement

A: barbie
****
Q: Category: MATH TERMS 
Clue: The term surd refers to irrational numbers like this number's square root, 1.7320508...

A: 3
****
Q: Category: ODD WORDS 
Clue: Now meaning "drivel", it used to be a trick to gain applause

A:
claptrap
****