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: WHO PLAYED 'EM? 
Clue: Joanie Cunningham
erin moran

Category: SIGNS & SYMBOLS 
Clue: Symbols of mystery, they're the mysterious doubles of the people who cast them
shadows

Category: FOOD ACROSS AMERICA 
Clue: New Yorkers claim their bagels are best, because this ingredient is best in New York

the water