So call me a book snob but as I always say , too many books , so little time . And I believe there 's one about life 's too short to read bad books . And then there 's different strokes for different folks . I ' m so wise .

OPTIONS:
--They are trying to build credibility so that we will buy books from them;
--They are attempting to persuade us to believe that they know what they 're talking about;
--They are trying to become a writer and are trying to justify why we should give them a chance;
--They are simply explaining the kind of person they are and are clarifying their ethos;
Q: What has lead the speaker to express their preferences in relation to books ?
They are simply explaining the kind of person they are and are clarifying their ethos