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: SCIENCE 
Clue: What you're "stuck with" boiling down collagen, softening it with hot water & letting it swell
[A]: glue


[Q]: Category: LITTLE LEAGUE 
Clue: Begun in 2001, an orientation program for these people tells them not to freak out over coaches' or umpires' decisions
[A]: parents


[Q]: Category: "DI" HARD 
Clue: An oblique line
[A]:
a diagonal