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.
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Question: Category: NEW WORDS & PHRASES 
Clue: There's a questioning sound to this collective term for people born in the 1980s & '90s

Answer: generation y


Question: Category: VIDEO GAME HISTORY 
Clue: id Software says hardcore PC games went mainstream in 1994 when it unleashed this fatal-sounding game

Answer: doom


Question: Category: THE PLAGUE 
Clue: Plague is generally spread from rodents to humans by these insects

Answer:
fleas