Of the following what? You didn't list any examples
Answer: confidently
Explanation: your definition of confidently is "self-assuredly"
Well, it depends on the genre of that non-fictional book. For instance, a mystery book would make the audience interested if there was an unsolved mystery included, but an adventure book, for instance, might hook the reader if it was actually based on historical events and something like the book described had actually happened. Therefore, for a fictional book, I would say all of these interest me depending on the type of book.
I...uhm....what, are you asking?-
