Identify one non-alcoholic beverage that can be offered in restaurants.

Sparkling water is an excellent choice for a non-alcoholic beverage offered in restaurants. It provides a refreshing alternative that caters to guests who may not want to consume alcohol while still wanting something sophisticated and flavorful. Sparkling water can be served plain or flavored, making it versatile and appealing to a wide range of customers.

Additionally, it complements many dishes, enhances the dining experience, and can serve as an attractive option when paired with various foods. The bubbles in sparkling water can also provide a similar mouthfeel to alcoholic beverages, making it an enjoyable choice for those looking to socialize without consuming alcohol.

In contrast, red wine, whiskey, and beer are alcoholic beverages and not suitable for individuals looking for non-alcoholic options.