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: ROCKS & MINERALS 
Clue: A mixture containing antimony is sprayed on canvas to render it this
[A]: fireproof


[Q]: Category: CELEBRATED ON THEIR BIRTHDAYS 
Clue: Arbor Day in California, March 7
[A]: luther burbank


[Q]: Category: DESIGN 
Clue: Coquiage is a design motif that features representaions of these items you find by the sea
[A]:
seashells