The author of the passage implies that an argument for the historical accuracy of Mather's works is most strongly supported by which of the following? A. surviving documents that corroborate Mather's detailed descriptions of his subjects B. Mather's firsthand personal acquaintance with those about whom he wrote C. Mather's frank and straightforward accounts of the lives and times of people about whom he had conducted extensive research D. Mather's ability to detail important historical events in the religious context of which they were a part E. the quantity and nature of the sources from which Mather obtained his information.