The correct answers should be
<span>-the greater amount of leisure available to people</span>
<span>-the growth of the publishing industry
</span><span>-increased literacy rates in the middle class
</span>
People started educating themselves which led to increased amount of reading. Novels were not considered high culture so they were very available to the middle class.
Autobiography is the right answer
Harry Potter - J.K. Rowling
Lord of the Rings - J.R.R. Tolkien
Wings of Fire - Tui T. Sutherland
Diary of a Wimpy Kid - Jeff Kinney
Percy Jackson - Rick Riordan
Captain Underpants - Dav Pilkey
