H D5 TS Q21 – Selective High School

According to a recent study, advertisements in medical journals often contain misleading information about the effectiveness and safety of new prescription drugs. The medical researchers who wrote the study concluded that the advertisements could result in doctors’ prescribing inappropriate or even harmful drugs to their patients.

Which one of the following statements, if true, would most strengthen the researchers’ conclusion?

Advertisements for new prescription drugs are an important source of revenue for medical journals. Pharmaceutical companies often mislead the public into believing that they require a certain drug. Doctors often rely on the advertisements as a quick source of information about new prescription drugs. The government agency responsible for drug regulation reviews advertisements for new drugs only after the ads have already been printed.

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Which one of the following statements, if true, would most strengthen the researchers’ conclusion?