Which statement best describes Pausch's purpose? He wants his audience to understand that being an authority on a subject is not as rewarding as they may think. He wants his audience to see how he accomplished one of his childhood goals through an entertaining story. He wants his audience to understand how to use a virtual reality headset and that he is an authority on the subject. He wants his audience to be impressed that his article is in World Book, but understand that he wishes it had appeared online.