This is an excerpt from the book The Turning Point of the Revolutionary War by Revolutionary War historian Gia Manderley: The Battles of Saratoga are considered a major turning point for the Americans in the Revolutionary War. British general John Burgoyne's campaign failed to separate New England from the southern colonies, and he lost almost 1,000 men in the two battles. The British also learned that the American armies were brave and effective. Which statement about the credibility of this source is most accurate? A. This source is credible because it contains opinions that are shared by other authors. B. This source is not credible because it was not written by an expert in the field. C. This source is credible because it contains facts and information that are accurate. D. This source is not credible because it contains more opinions than facts.