Which one of the following statements best describes the organization of first paragraph of the passage? A. A generalization is made and then gradually refuted. B. A number of theories are discussed and then the author chooses the most convincing one. C. Several categories are mentioned and then one category is discussed in some detail. D. A historical trend is delineated and then a prediction about the future of the trend is offered. E. A classification is made and then a rival classification is substituted in its place.