Question ID:PT85 S2 Q2 Passage:Physician: A tax on saturated fat, which was intended to reduce consumption of unhealthy foods, has been repealed after having been in effect for only seven months. The tax was apparently having some undesirable and unintended consequences, encouraging people to travel to neighboring countries to purchase certain foods, for example. Nonetheless, the tax should not have been repealed so soon. Stem:Which one of the following principles, if valid, most helps to justify the physician's conclusion regarding the tax? Correct Answer Choice:BChoice A:A tax on unhealthy foods should be implemented only if it can be known with a high degree of certainty that it will actually improve people's health. Choice B:It is not possible to adequately gauge the impact of a tax intended to affect people's health until the tax has been in effect for at least one year. Choice C:Before any law intended to improve people's health is implemented, all foreseeable negative consequences should be carefully considered. Choice D:A law intended to improve people's health should be repealed if it is clear that most people are evading the law. Choice E:A tax on unhealthy foods should be applied only to those foods that are widely believed to be the most unhealthy.