Question ID:PT43 S2 Q23 Passage:Toxicologist:  Recent research has shown that dioxin causes cancer in rats. Although similar research has never been done on humans, and probably never will be, the use of dioxin should be completely banned. Stem:That dioxin causes cancer in rats figures in the argument in which one of the following ways? Correct Answer Choice:DChoice A:It is presented as the hazard that the researcher is concerned with preventing. Choice B:It is presented as a benefit of not acting on the recommendation in the conclusion. Choice C:It is presented as evidence for the claim that similar research will never be done on humans. Choice D:It is presented as a finding that motivates the course of action advocated in the conclusion. Choice E:It is presented as evidence for the claim that similar research has never been done on humans.