The correct option is D Gourmet
'Connoisseur of good food' is option C, Gourmet. Option A, 'Greedy' means having excessive desire for food, money or what you need. Option B, 'Glutton' is a person who regularly drinks and eats more than needed. Option D, 'Gourmand' is a person who enjoys eating a large amount of food. Thus, options A, B and D are incorrect and the correct word for the given phrase is Option C, Gourmet.