题目选项分析

It is illegal to advertise prescription medications in Delland except directly to doctors, either by mail or in medical journals. A proposed law would allow general advertising of prescription medications. Challenger objects that the general population lacks the specialized knowledge to assess such advertisements and might ask their doctors for inappropriate medications. But because doctors have the final say as to whether to prescribe a medication for a patient, inappropriate prescriptions would not become more common.

Which of the following would it be most useful to establish in order to evaluate the argument?

【选项】Whether some people might go to a physician for no reason other than to ask for a certain medication they have seen advertised