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: BRAIN STRAIN 
Clue: Appropriately, this stadium has hosted the NFL Super Bowl more than any other
[A]: louisiana superdome


[Q]: Category: SO GREAT THEY NEED 2 NICKNAMES 
Clue: By career's end Wayne Gretzky was "The Great One"; earlier he was this, also a Chaplin film title
[A]: "the kid"


[Q]: Category: WHEN "GH" SOUNDS LIKE F 
Clue: This long, narrow receptacle holds food for animals
[A]:
a trough