Select the option that can be used as a one-word substitute for the underlined group of words.

My uncle is someone who loves good food and knows a lot about it.

Connoisseur

The correct option is 1. Connoisseur.

• Connoisseur is a person who has a great deal of knowledge and appreciation of a particular field, such as art, wine, or food.
• Gourmet is a person who enjoys fine food and drink.
• Chauffeur is a person who drives a car for another person.
• Culinary is relating to cooking or the art of cooking.

In the given sentence, the underlined group of words refers to someone who has a great deal of knowledge and appreciation of food. Therefore, the one-word substitute for the underlined group of words is connoisseur.