Jaime: The life span for both African and Asian elephants is much shorter in zoos than in the national reserve parks. Studies have proven this by comparing the life spans of elephants in zoos to the life spans of elephants in nature reserves in both Kenya and Myanmar. Thus, our government should take a serious look at how zoos treat their elephants and possibly implement a temporary ban on the acquisition of new elephants until this issue is resolved.
Eleanor: But both the reserves you mention are protected areas where the animals do not face the threat of poaching and other unnatural dangers. Also, the data in those studies go back more than 40 years and do not take into account more recent advances in captive animal care that will most definitely extend the life spans of elephants currently in zoos.
Which one of the following is an assumption on which Eleanor’s argument depends?
(A) There are
genetic differences between African and Asian elephants that effect variance of life spans
between those particular species. - WRONG. Like D this is irrelevant too.
(B) Predators and diseases within the confines of a nature reserve affect the life span of an elephant to a lesser extent than threats an elephant faces outside the parks. - CORRECT. Bit odd in reality when confinement is not safe compared to natural habitat. But the logic given by Eleanor would work if this is true.
(C) The training of zookeepers and those who manage nature reserves is exactly the same; thus, the care of the elephants should be exactly the same. - WRONG. If training is not same then care is not same but this eventually not help us reach the conclusion as Eleanor reached. There can be many factor beyond care that zookeepers provide.
(D) A zookeeper in 1970 was unable to help extend the lives of elephants incaptivity due to
budgetary restraints that plagued zoos at that time. - WRONG. Irrelevant scope.
(E) The professionals that manage nature reserves are more aware of the threat of poachers than zookeepers; thus, they do a better job of protecting their elephants from them. - WRONG. Very basic logic is failed here. But even if they don't do a better job then it doesn't make much sense to the argument.
Answer B.