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Brain scans of people exposed to certain neurotoxins reveal

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VP
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Joined: 29 Dec 2005
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Brain scans of people exposed to certain neurotoxins reveal [#permalink]

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New post 02 Apr 2006, 12:50
00:00
A
B
C
D
E

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Brain scans of people exposed to certain neurotoxins reveal brain damage identical to that found in people suffering from Parkinson’s disease. This fact shows not only that these neurotoxins cause this type of brain damage, but also that the brain damage itself causes Parkinson’s disease. Thus brain scans can be used to determine who is likely to develop Parkinson’s disease.

The argument contains which one of the following reasoning errors?

(A) It fails to establish that other methods that can be used to diagnose Parkinson’s disease are less accurate than brain scans.
(B) It overestimates the importance of early diagnosis in determining appropriate treatments for people suffering from Parkinson’s disease.
(C) It mistakes a correlation between the type of brain damage described and Parkinson’s disease for a causal relation between the two.
(D) It assumes that people would want to know as early as possible whether they were likely to develop Parkinson’s disease.
(E) It neglects to specify how the information provided by brain scans could be used either in treating Parkinson’s disease or in monitoring the progression of the disease.
Director
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 [#permalink]

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New post 02 Apr 2006, 13:02
I would choose C
Director
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Joined: 24 Oct 2005
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New post 03 Apr 2006, 03:18
Straight C.
VP
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New post 03 Apr 2006, 06:37
No contest. C it is.
Senior Manager
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New post 03 Apr 2006, 06:52
Answer has to be C.

All other answer choices are weak.

A talks about other methods, which are irrelevant to this argument
B too is irrelevant, as the CR stem doesn't deal with early diagnosis
D is irrelevant, as the assumption that people would be interested in early diagnosis is neither mentioned nor implied
E is wrong, because the argument deals with Alzheimer's disease and not Parkinson's disease
Senior Manager
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New post 03 Apr 2006, 07:31
My choice is C too.
Senior Manager
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New post 04 Apr 2006, 10:37
One more for 'C'.
Manager
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Location: Land Of Opportunities
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New post 04 Apr 2006, 21:53
I used POE and "C" seems to stand out
  [#permalink] 04 Apr 2006, 21:53
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Brain scans of people exposed to certain neurotoxins reveal

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