题目选项分析

Physicians' associations argue that because only physicians understand the underlying skills that an individual needs in order to practice medicine according to professional standards, these associations should continue to exercise control over the admissions standards of medical schools. Critics reply that in other fields, professional standards are upheld even though professional associations do not control admissions standards for schools.

Which of the following, if true, most strongly supports the argument of the physicians' associations against the challenge offered by the critics?

【选项】No professional associations other than physicians' associations have ever attempted to control admissions to professional schools.