Question ID:PT82 S1 Q12 Passage:If an activity significantly reduces chronic lower back pain, doctors should be prepared to discuss the merits of that activity with patients who ask about it. A recent study compared practicing yoga to taking stretching classes with a physical therapist and found that both activities lead to equal reductions in chronic lower back pain. Thus, doctors treating patients with chronic lower back pain should be prepared to discuss the merits of yoga. Stem:Which one of the following is an assumption required by the argument? Correct Answer Choice:BChoice A:There are no activities that lead to more significant reductions in chronic lower back pain than do stretching classes with a physical therapist. Choice B:Taking stretching classes with a physical therapist significantly reduces chronic lower back pain. Choice C:Few treatment options for those with chronic lower back pain are available. Choice D:No previous studies have compared practicing yoga to taking stretching classes with a physical therapist. Choice E:Many doctors treating patients with chronic lower back pain discuss with their patients the merits of taking stretching classes with a physical therapist.