Often patients with ankle fractures that are stable,and thus do not require surgery,are given follow-upx-raysbecause their orthopedist s are concerned about possibly having misjudged the stability of the fracture. When anumber of follow-up x-rays were reviewed, however, all the fracture s that had initially been judged stable werefound to have healed correctly. Therefore, it is a waste of money to orderfollow-up x-rays of ankle fracturesinitially judged stable. Which of the following, if true, most strengthensthe argument? (a) Doctorswho are generalpractitionersratherthan orthopedistsarelesslikelythan orthopediststojudgethe stability of an ankle fracture correctly. (b) Many ankle injuries for which an initial x-ray is ordered are revealed by the x-ray not to involve any fractureof the ankle. (c) X-rays of patients of many different orthopedists working in several hospitals were reviewed . (D) The healing of ankle fracture s that have been surgically repaired is always checked by means of afollow-up x-ray. (E) Orthopedists routinely order follow-up x-rays for fractures of bones other than ankle bones. 答案c。为什么c是加强。