Question ID:PT89 S2 Q17 Passage:Psychiatrist:  Psychological stress is known both to cause negative emotions and to impair physical health. This suggests that overcoming such negative emotions when they arise could cause one's health to improve. Stem:The psychiatrist's argument is most vulnerable to criticism on which one of the following grounds? Correct Answer Choice:BChoice A:It presumes without justification that two conditions that together have a certain effect causally influence one another. Choice B:It presumes, merely on the basis that two conditions have a common cause, that one of these two conditions can causally influence the other. Choice C:It confuses two causes that together are necessary to bring about an effect with causes that are sufficient for that effect. Choice D:It takes for granted that two conditions that together have a certain effect can, each by itself, produce the same effect. Choice E:It takes for granted that removing a condition that causally contributes to another condition suffices to eliminate the latter condition.