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: NOW THAT'S INVENTIVE! 
Clue: Famous for his jet, he also invented the automobile radio for the company that became Motorola

A: lear
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Q: Category: 3-LETTER WORDS 
Clue: For 5 & 7 it's 12

A: sum
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Q: Category: "B" PREPARED 
Clue: Examples include Risk, backgammon & chess

A:
board games
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