The correct answer is B) We had mile-high ice cream cones for dessert.
The sentence that is an example of hyperbole is "We had mile-high ice cream cones for dessert."
A hyperbole is an exaggerated sentence or expression, hard to believe. It is a literary figure that has not to be understood literally. What the hyperbole does in a text is to exaggerate something for the reader to pay attention to or emphasize something. In the case, it is not true that the ice cream was "mile-high," but the author wanted to share the idea that the ice creams were so big.