Which one of the following best summarizes the main point of the passage? A. The personal integrity of an autobiography's editor has little relevance to its value as a literary work. B. Autobiographies dictated to editors are less valuable as literature than are autobiographies authored by their subjects. C. The facts that are recorded in an autobiography are less important than the personal impressions of its author. D. The circumstances under which an autobiography was written should affect the way it is interpreted as literature. E. The autobiographies of African Americans written between 1760 and 1865 deserve more careful study than they have so far received.