Question ID:PT24 S3 Q6 Passage:Asthmagon was long considered the most effective of the drugs known as beta-2 agonists, designed to alleviate asthma attacks.  However, studies conducted in Rhiago between 1981 and 1987 revealed that nearly one out of every five of the asthma patients under observation who took asthmagon suffered serious side effects after taking the drug.  Citing this statistic, some doctors argue that asthmagon should be banned as an anti-asthma drug. Stem:Which one of the following, if true, most weakens the case for the proposed ban of asthmagon? Correct Answer Choice:DChoice A:In Rhiago, where asthmagon had been the most widely prescribed of the beta-2 agonists, the number of asthma deaths increased between 1981 and 1987. Choice B:Many of the patients under observation to whom asthmagon was administered had not previously taken a beta-2 agonist. Choice C:Despite the growing concern about the drug, many physicians in Rhiago still prescribe asthmagon to asthma sufferers. Choice D:Among the patients observed, only those who had very high cholesterol counts suffered side effects after taking asthmagon. Choice E:Asthmagon increases the severity of asthma attacks in some people because the drug can cause damage to heart tissues.