Read the excerpt from last lecture by randy pausch. and after i had become somewhat of an authority on virtual reality, but not like a really important one, so i was at the level of people the world book would badger. they called me up and i wrote an article, and this is caitlin kelleher [shows slide of caitlin wearing virtual reality headset manipulating a 3d world], and there’s an article if you go to your local library where they still have copies of the world book. look under v for virtual reality, and there it is. and all i have to say is that having been selected to be an author in the world book encyclopedia, i now believe that wikipedia is a perfectly fine source for your information because i know what the quality control is for real encyclopedias. they let me in. which statement best describes pausch's purpose? a.)he wants his audience to understand that being an authority on a subject is not as rewarding as they may think. b.)he wants his audience to see how he accomplished one of his childhood goals through an entertaining story. c.)he wants his audience to understand how to use a virtual reality headset and that he is an authority on the subject. d.)he wants his audience to be impressed that his article is in world book, but understand that he wishes it had appeared online.