Explanation
A. The purpose is not just to provide an example of predicted observations but to highlight the role of sulfates in refining temperature models.
B. These sentences do not suggest a need for a completely new theory, but rather an adjustment to the current model to include additional factors.
C. The passage does not indicate a failure of the existing theory; it talks about refining it with additional data.
D. (Correct Response) This is the most accurate statement since the author discusses how the inclusion of new data regarding sulfates has helped support a theory that was otherwise in doubt.
E. There is no mention of resolving a dispute between two theories; it is about enhancing the existing theory with new data.
The correct response is consistent with the passage's explanation that including the effects of sulfates in the models can produce results that are consistent with observed temperatures, thus supporting the theory.