Which of the followings not a valid constructor header for a $$Fooditem$$ that is defined as follows;

publicclass FoodItem

$\{$

finalprivateintCALORIES$\_$PER$\_$GRAM $=9$;

protectedintfatGrams;

protectedintservings;

public String type;

public FoodItem$()$

public FoodItem$($int numFatGrams, int numServings$)$

public int FoodItem$($int numFatGrams$)$

public FoodItem$($int numServings$)$