Without access to the specific text of Passage 2, I can't provide a definitive answer. However, based on the context of the phrase “Eh—what?” it could suggest confusion or surprise. If Mr. Gibson is responding in surprise to Cal's remarks about driving, it might imply that he is confused or caught off guard by Cal's apparent knowledge or comments on driving.
Therefore, if "Eh—what?" indicates confusion, then the best choice would be:
D. He is confused when Cal appears to know more about driving than he does.
If you would like to provide more context or details, I could help you analyze the text further!