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.

Category: AMERICAN LITERATURE 
Clue: "Little Women" is set during this war
the civil war

Category: POETS & POULTRY 
Clue: Last name of William Carlos, who wrote, "So much depends upon a red wheel barrow beside the white chickens"
williams

Category: TV COMMERCIALS 
Clue: In an ad for these khakis, a couple chases a mouse & ends up keeping it as a pet

dockers