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Despite improvements in treatment for asthma, the death rate

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Despite improvements in treatment for asthma, the death rate [#permalink] New post 22 Jan 2011, 09:05
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A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

38% (03:13) correct 63% (01:03) wrong based on 8 sessions
Despite improvements in treatment for asthma, the death rate from this disease has doubled during the past decade from its previous rate. Two possible explanations for this increase have been offered. First, the recording of deaths due to asthma has become more widespread and accurate in the past decade than it had been previously. Second, there has been an increase in urban pollution. However, since the rate of deaths due to asthma has increased dramatically even in cities with long-standing, comprehensive medical records and with little or no urban pollution, one must instead conclude that the cause of increased deaths is the use of bronchial inhalers by asthma sufferers to relieve their symptoms.

Each of the following, if true, provides support to the argument EXCEPT:

(A) Urban populations have doubled in the past decade.
(B) Records of asthma deaths are as accurate for the past twenty years as for the past ten years.
(C) Evidence suggests that bronchial inhalers make the lungs more sensitive to irritation by airborne pollen.
(D) By temporarily relieving the symptoms of asthma, inhalers encourage sufferers to avoid more beneficial measures.
(E) Ten years ago bronchial inhalers were not available as an asthma treatment.

Taken from aristotleprep CR practice bank. No explanation is provided. Experts are silent. I picked B because thought that since the stimuli focuses on the past decade, the accurateness of the records for the past twenty years is irrelevant.
What's wrong with the logic?
Thanks all in advance!
[Reveal] Spoiler: OA
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Re: Relatively simple LSAT StrenghtenX Q [#permalink] New post 22 Jan 2011, 09:20
Same stimuli different stem. Would also appreciate explanations!

Which one of the following is an assumption on which the argument depends?
(A) Urban pollution has not doubled in the past decade.
(B) Doctors and patients generally ignore the role of allergies in asthma.
(C) Bronchial inhalers are unsafe, even when used according to the recommended instructions.
(D) The use of bronchial inhalers aggravates other diseases that frequently occur among asthma sufferers and that often lead to fatal outcomes even when the asthma itself does not.
(E) Increased urban pollution, improved recording of asthma deaths, and the use of bronchial inhalers are the only possible explanations of the increased death rate due to asthma.
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Re: Relatively simple LSAT StrenghtenX Q [#permalink] New post 22 Jan 2011, 09:51
now i read carefully the first one and realized it says "the death rate from this disease has doubled during the past decade from its previous rate" So this makes sense to consider last twenty years. My guilt. If i spotted that the only possible answer would be A
Still i answered the second one incoreectly
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Re: Relatively simple LSAT StrenghtenX Q [#permalink] New post 24 Jan 2011, 00:51
why not B
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Re: Relatively simple LSAT StrenghtenX Q [#permalink] New post 24 Jan 2011, 02:48
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rajnishgaur wrote:
why not B

take a look at the explanation i was able to receive on other forum
The OA btw is A. What is responsible for the increased death rate for asthma over the last decade? The author mentions three potential explanations. The first two—increased and more accurate reporting and an increased urban population—cannot, according to the author, explain why asthma death rates have increased dramatically in cities with long-standing accurate records and very small urban populations. From this, the author makes the remarkable conclusion that the increase must be due to a third explanation: the use of bronchial inhalers.

This argument needs a lot of help, and fortunately, four of the five answer choices are intended to provide support, which means to help fill in the gaps. (A), however, is irrelevant: the only urban factor mentioned is increased pollution, and what relation a doubling urban population has to pollution is ambiguous at best. Mostly, however, (A) simply has no bearing on the inhaler question or the first two factors mentioned and then discredited as causes for the phenomenon. Each of the other choices, as we’ll discuss below, does have a direct bearing on these issues, whereas (A) does not.

(B) strengthens the argument by helping to rule out increased reporting as an alternative explanation for the increase in the asthma death rate. If records have been just as good for the past twenty years, then an increase in deaths over the past ten years cannot be influenced by better reporting.

(C) and (D) both suggest qualities of the bronchial inhalers that indicate that their use might play a role in increased asthma death rates. It is plausible that irritated lungs and avoiding medical treatment are causally related to death.

(E) If bronchial inhalers had been available the entire time, it would be hard to believe that they could suddenly be responsible for the recent increase in the asthma death rate. (E) thus strengthens the argument by suggesting a connection between the recent doubling of the death rates and the introduction of the proposed cause, the inhalers.
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Re: Relatively simple LSAT StrenghtenX Q [#permalink] New post 24 Jan 2011, 10:50
Clearly A as it says that the increase in death rate could be because of the increased population.
Re: Relatively simple LSAT StrenghtenX Q   [#permalink] 24 Jan 2011, 10:50
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