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: BLACK IS BACK 
Clue: The "Black Spot" is a dreaded summons handed out by pirates in this 1883 Robert Louis Stevenson tale
[A]: treasure island


[Q]: Category: LITERATURE 
Clue: The first sequel to this classic French novel was titled "Twenty Years After"
[A]: the three musketeers


[Q]: Category: NOW IN STORE 
Clue: Models Marcus Schenkenberg & Jerry Hall helped cargo pants sail up the sales chart for this store
[A]:
old navy