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: FIREFIGHTING 
Clue: Early NYC firemen were alerted with rattles--so you might have a 3-rattle fire where today we'd have this equivalent
[A]: a 3-alarm fire


[Q]: Category: DOT-COM DOOM 
Clue: The release of adverse findings of fact in the case U.S. v. this company helped spur the dot-com bust
[A]: microsoft


[Q]: Category: TAKE A LETTER 
Clue: This letter paired with "H" at the end of a word sometimes results in an "F" sound
[A]:
p