Answer: A) book.
Step-by-step explanation:
We can conclude that the author is referring to a book when saying "novel", because:
- "novel" is a kind of a book
- the location where the novel can be found indicates that it is a book ("the store")
- words "comic" and "novel" are not interchangeable; the comic is a periodical which includes strips/cartoons, while the synonym for comic is comic paper/cartoon paper
- words "movie" and "novel" have completely different meaning
- as an adjective, word "novel" does mean "new", but in this context, it is not used as an adjective