Question ID:PT5 S1 Q18 Passage:Mary, a veterinary student, has been assigned an experiment in mammalian physiology that would require her to take a healthy, anesthetized dog and subject it to a drastic blood loss in order to observe the physiological consequences of shock. The dog would neither regain consciousness nor survive the experiment. Mary decides not to do this assignment. Stem:Mary’s decision most closely accords with which one of the following principles? Correct Answer Choice:BChoice A:All other things being equal, gratuitously causing any animal to suffer pain is unjustified. Choice B:Taking the life of an animal is not justifiable unless doing so would immediately assist in saving several animal lives or in protecting the health of a person. Choice C:The only sufficient justification for experimenting on animals is that future animal suffering is thereby prevented. Choice D:Practicing veterinarians have a professional obligation to strive to prevent the unnecessary death of an animal except in cases of severely ill or injured animals whose prospects for recovery are dim. Choice E:No one is ever justified in acting with the sole intention of causing the death of a living thing, be it animal or human.