The 3rd-person omniscient narrative voice is most likely being employed here. The writing is in the 3rd person, and the narrator apparently can give access to Chad's thoughts, which suggests that the narrator is writing from a perspective that knows everything related to the story.
answer :
fruits,vegetables and fish
John cage maybe. but you didn’t give possible answers sooo...
The most important characteristic of a good detective is if they are observational or not, they won't every solve any case if they don't keep their eyes wide open, and observe.