Question ID:PT22 S2 Q4 Passage:Most small children are flat-footed.  This failure of the foot to assume its natural arch, if it persists past early childhood, can sometimes result in discomfort and even pain later in life.  Traditionally, flat-footedness in children has been treated by having the children wear special shoes that give extra support to the foot, in order to foster the development of the arch. Stem:Which one of the following, if true, most calls into question the efficacy of the traditional treatment described above? Correct Answer Choice:DChoice A:Many small children who have normal feet wear the same special shoes as those worn by flat-footed children. Choice B:Studies of flat-footed adults show that flat feet are subject to fewer stress fractures than are feet with unusually high arches. Choice C:Although most children's flat-footedness is corrected by the time the children reach puberty, some people remain flat-footed for life. Choice D:Flat-footed children who do not wear the special shoes are as likely to develop natural arches as are flat-footed children who wear the special shoes. Choice E:Some children who are not flat-footed have hip and lower leg bones that are rotated excessively either inward or outward.