Professor Clemens: Many people die in traffic accidents each year. Since airbags can prevent deaths in traffic accidents, motor vehicles should be equipped with airbags. Professor Sanford: Your recommendation is useless. It is true that airbags may save some lives in traffic accidents, but seatbelts can prevent far more deaths each year than can airbags. Professor Sanford's response fails to establish that Professor Clemens's recommendation should not be implemented because her response ["does not show that the benefits that would follow from Professor Clemens's recommendation would be offset by any disadvantages", 'confuses the notion of saving lives with the expense associated with the remedy', 'is not supported by any evidence that seatbelts do, in fact, save more lives', 'does not offer any additional way of lessening the risk associated with traffic accidents']