Question ID:PT89 S2 Q10 Passage:Toning shoes‚ walking shoes with a specially rounded sole‚ are popular with fitness enthusiasts. Research shows that the major leg muscles of people walking in toning shoes receive no more exercise than those of people walking in ordinary walking shoes. Nevertheless, many people experience a strengthening of their major leg muscles after switching to toning shoes. Stem:Which one of the following, if true, most helps to resolve the apparent discrepancy in the information above? Correct Answer Choice:CChoice A:Toning shoes strengthen small underused muscles in the feet and ankles. Choice B:Muscles in the leg adapt to the rounded shape of toning shoes almost immediately. Choice C:Many people find toning shoes especially comfortable and walk more as a result. Choice D:There is little evidence that toning shoes cause injuries to their wearers. Choice E:Shoes that strengthen the major leg muscles are more marketable than ordinary shoes.