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: ADD A LETTER 
Clue: Adding this letter to heritage gives you a nice, secluded retreat
m

Category: A CHRISTMAS CAROL 
Clue: "A partridge in a pear tree"
"the twelve days of christmas"

Category: STUFF I WANT 
Clue: Forget the GV; I want the G550 large-cabin ultra-range jet from this company

gulfstream