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: FAMOUS TEXANS 
Clue: The family home of this longtime Speaker of the House is now a museum in Bonham, Texas
[A]: sam rayburn


[Q]: Category: CAN'T SMILE WITHOUT YOU 
Clue: It's the hard outer layer of a tooth
[A]: enamel


[Q]: Category: LET'S HAVE A DRINK... OF WATER 
Clue: This independent agency of the U.S. government is concerned with providing clean drinking water to all Americans
[A]:
the epa