The top sources of empty calories for teens include all of the following except soda. pizza. crackers. ice cream.

The answer would be B, Pizza.

Explanation:

Empty Calories are the calories from the food which has no or very less nutrient value in it.

Teens now a days consumes foods which are full of empty calories. Those foods have no nutrients it them. Soda, Crackers and ice creams  are examples of such foods. These foods are prepared with chemicals that have no nutritional values. Among these foods, pizza is the one which is less in empty calories. Pizza has meat chunks, vegetables, mushrooms, olives, cheese, which have some good nutritional values.