What dessert type is presented as a popular option to share at the end of a meal?

The correct choice is large chocolate cake or other sharing desserts because these types of desserts are commonly designed to be enjoyed by multiple people, making them a great option for sharing at the end of a meal. Large desserts, such as a big chocolate cake, often come with serving options that encourage guests to portion out slices for one another, fostering a communal dining experience. This aligns with the Italian dining tradition of sharing food, which is often emphasized in Olive Garden's family-oriented atmosphere.

In contrast, options like an ice cream sundae, fruit tart, or a slice of cheesecake are typically served as individual portions, making them less ideal for a shared dessert experience. These desserts are generally meant to be enjoyed by one person at a time, which doesn't capture the same spirit of togetherness that large sharing desserts do. Therefore, the emphasis on sharing and communal enjoyment makes large chocolate cake or similar desserts a popular choice at the end of a meal at Olive Garden.