GRE Reading Comprehension: ETS-GRE阅读ETS - D8EOTTIM26029GUD7

Which one of the following best describes the function of the first paragraph of the passage? A. It provides the scholarly context for Tollefson's study and a description of his methodology. B. It compares Tollefson's study to other works and presents the main argument of his study. C. It compares the types of documents Tollefson uses to those used in other studies. D. It presents the accepted theory on Tollefson's topic and the method by which Tollefson challenges it. E. It argues for the analytical and technical superiority of Tollefson's study over other works on the topic.