The author's purpose for including this portion of "How to Eat an Ice-Cream Cone" is: c. the author is trying to use humor in order to entertain the audience.
Humor refers to words or actions that are meant to create laughter.
When the author of this text elaborated on how the ice cream spreads through the parts of a car, he was making an attempt to create humor.
The audience will find the manner in which the ice cream spreads funny.
Learn more about humor here:
https://brainly.com/question/4420048