Class Constructor Initialization:

Which class definition properly initializes all of its data members when instanced in the following manner:

Meals m; class Meals public: string breakfast; string lunch; string dinner; Meals(string b = "yogurt", string l="sala d", string d="pasta"){ breakfast = b; lunch - l; dinner = d; } }; class Meals public: string breakfast; string lunch; string dinner; Meals(string breakfast = "yogurt", string lunch="salad", string dinner="pasta") { this.breakfast = breakfast; this.lunch lunch; this.dinner = dinner; } }; class Meals public: string breakfast; string lunch; string dinner; Meals(string breakfast = "yogurt", string unch="salad", string dinner="pasta"){ breakfast = breakfast; lunch = lunch; din ner - dinner; } }; class Meals public: string breakfast; string lunch; string dinner; Meals(string breakfast = "yogurt", strin g lunch ="salad", string dinner ="pasta"){} }