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: THE 10 LARGEST COUNTRIES IN THE WORLD 
Clue: The one that spans 11 time zones

A: russia
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Q: Category: HOLIDAYS 
Clue: "(Hi, I'm Chuck Woolery)  You can send a card to your sweetheart or anyone in your 4th grade class on this February holiday"

A: valentine\'s day
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Q: Category: LET'S GET PHYSICAL! 
Clue: It's the -ology that studies the structure, function & diseases of the bones

A:
osteology
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