The following are the correct options: THE AUTHOR'S KNOWLEDGE, THE AUTHOR'S OPINION, THE AUTHOR WORLDVIEW AND THE AUTHOR'S EXPERIENCE
All these factors make up the person that the author really is and they are going to affect the way he perceives things. These factors are the determinants of the kind of information and view that will be found in any book that the author writes.
Since misery and depression are both sad/bad kinds of feelings, then we have to find a pair of words that have the same kind of feeling in order to complete this analogy. The correct answer should be melancholy and boredom.
