Which one of the following best characterizes the author's assessment of the opinions of the new historians of science, as these opinions are presented in the passage? A. They lack any credibility. B. They themselves can be rewardingly studied as social phenomena. C. They are least convincing when they concern the actions of scientific groups. D. Although they are gross overstatements, they lead to some valuable insights. E. Although they are now popular, they are likely to be refused soon.