单项选择题

In the passage, the author is primarily concerned with

(A) identifying the differences between science and pseudo-science as they relate to skepticism
(B) stressing the importance of employing the scientific method to assuage skeptics
(C) proposing a new scientific approach which answers the objections presented by skepticism
(D) offering a model of skepticism that is both useful to science and avoids the pitfalls of relativism
(E) explaining the difference between the assumptions made by relativists and those made by skeptics