Question ID:PT85 S3 Q9 Passage:Until recently it was widely believed that only a limited number of species could reproduce through parthenogenesis, reproduction by a female alone. But lately, as interest in the topic has increased, parthenogenesis has been found in a variety of unexpected cases, including sharks and Komodo dragons. So the number of species that can reproduce through parthenogenesis must be increasing. Stem:The reasoning in the argument is most vulnerable to criticism on the grounds that the argument Correct Answer Choice:CChoice A:equates mere interest in a subject with real understanding of that subject Choice B:takes for granted that because one thing follows another, the one must have been caused by the other Choice C:takes ignorance of the occurrence of something as conclusive evidence that it did not occur Choice D:overlooks a crucial difference between two situations that the argument presents as being similar Choice E:presumes that because research is new it is, on that basis alone, better than older research