[求助]帮忙看看GWD24的骨折照X光题吧，题目见内，谢谢！！！

恕偶愚钝，可是为什么选B啊？谢谢！

24-22 Often
patients with ankle fractures that are stable, and thus do not require surgery,
are given follow-up x-ray because their orthopedists are concerned about
possibly having misjudged the stability of the fracture. When number of
follow-up x-rays were reviewed, however, all the fractures that had initially
been judged stable were found to have healed correctly. Therefore, it is a
waste of money to order follow-up x-rays of ankle fracture initially judged
stable.

Which of the
following, if true, most strengthens the argument?

A)   
Doctors who are general practitioners
rather than orthopedists are less likely than orthopedists to judge the
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 fracture
of the ankle.

C)   
X-rays of patients of many different
orthopedists working in several hospitals were reviewed.

D)   
The healing of ankle fractures that
have been surgically repaired is always checked by means of a follow-up x-ray.

E)   
Orthopedists routinely order follow-up
x-rays for fractures of bone other than ankle bones.