Yes B is the right answer, to produce a catharsis you are changing the emotion of the readers to show empathy.
A widely accepted way of thinking or behaving is a convention.
It denotes set of generally accepted standards and norms and a way in which something is usually done. Example for convention is shaking hands when greeting someone. Controversial on the other hand is something causing people to have opposing ways.
It's C. He doesn't know where to find Anne Murray
I would have to say false. I’ve never really read the story but looking up and preview of the book and searching Zaroffs name he is a antagonist in the story.