What is the author's purpose in this passage from "how to eat an ice-cream cone"? melted ice cream, children, is a fluid that is eternally sticky. one drop of it on a car-door handle spreads to the seat covers, to trousers, to hands, and thence to the steering wheel, the gearshift, the rearview mirror, all the knobs of the dashboard—spreads everywhere and lasts forever, spreads from a nice old car like this, which might have to be abandoned because of stickiness, right into a nasty new car, in secret ways that even scientists don't understand. a. the author is trying to encourage the audience to eat ice cream carefully b. the author is trying to persuade the audience not to eat ice cream c. the author is trying to use humor in order to entertain the audience d. the author is trying to inform the audience what can happen to a car