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.

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

[EX Q]: Category: HORSE RACING 
Clue: In 1711 Queen Anne saw the potential for this racecourse; its royal enclosure still has a formal dress code
[EX A]: ascot

[EX Q]: Category: MEN OF SCIENCE 
Clue: To make his barometer, Evangelista Torricelli inverted a glass tube in a dish of this
[EX A]:
mercury