Though sucking zinc lozenges has been promoted as a : GMAT Critical Reasoning (CR)
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# Though sucking zinc lozenges has been promoted as a

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Manager
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Though sucking zinc lozenges has been promoted as a [#permalink]

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11 Jul 2007, 17:57
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Though sucking zinc lozenges has been promoted as a treatment for the common cold, research has revealed no consistent effect. Recently, however, a zinc gel applied nasally has been shown to greatly reduce the duration of colds. Since the gel contains zinc in the same form and concentration as the lozenges, the greater effectiveness of the gel must be due to the fact that cold viruses tend to concentrate in the nose, not the mouth.

In order to evaluate the argument, it would be most helpful to determine which of the following?

A. Whether zinc is effective only against colds, or also has an effect on other virally caused diseases
B. Whether there are remedies that do not contain zinc but that, when taken orally, can reduce the duration of colds
C. Whether people who frequently catch colds have a zinc deficiency
D. Whether either the zinc gel or the lozenges contain ingredients that have an impact on the activity of the zinc
E. Whether the zinc gel has an effect on the severity of cold symptoms, as well as on their duration
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Manager
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11 Jul 2007, 18:17
B

if the cold is curable through oral means, then the conclusion is weakened and that concentration may be in the mouth
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11 Jul 2007, 21:47
I think it's D
Because zinc taken nasally reduces the effects of the cold while the oral form does not, it shows IMO that zinc is effective. Maybe something in the composition of the lozenge that happens to be absent from the gel cancels out the healing effect of oral zinc treatment.
It's not asking to strengthen or weaken the argument, just to evaluate it. Otherwise, B seems like the weakening option. I just think D helps us to better evaluate the subject matter.
Any other thoughts?
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12 Jul 2007, 08:29
simonsanchez wrote:
I think it's D
Because zinc taken nasally reduces the effects of the cold while the oral form does not, it shows IMO that zinc is effective. Maybe something in the composition of the lozenge that happens to be absent from the gel cancels out the healing effect of oral zinc treatment.
It's not asking to strengthen or weaken the argument, just to evaluate it. Otherwise, B seems like the weakening option. I just think D helps us to better evaluate the subject matter.
Any other thoughts?

I agree with simonsanchez. I like D as well.
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12 Jul 2007, 09:06
stevegt wrote:
Though sucking zinc lozenges has been promoted as a treatment for the common cold, research has revealed no consistent effect. Recently, however, a zinc gel applied nasally has been shown to greatly reduce the duration of colds. Since the gel contains zinc in the same form and concentration as the lozenges, the greater effectiveness of the gel must be due to the fact that cold viruses tend to concentrate in the nose, not the mouth.

In order to evaluate the argument, it would be most helpful to determine which of the following?

A. Whether zinc is effective only against colds, or also has an effect on other virally caused diseases
B. Whether there are remedies that do not contain zinc but that, when taken orally, can reduce the duration of colds
C. Whether people who frequently catch colds have a zinc deficiency
D. Whether either the zinc gel or the lozenges contain ingredients that have an impact on the activity of the zinc
E. Whether the zinc gel has an effect on the severity of cold symptoms, as well as on their duration

Has to be B. Activity of zinc cannot help us determine the part in bold. Hence, cannot be D.
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12 Jul 2007, 09:41
Donno. Not really convinced by the answers given thus far by people. I feel it should be E
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12 Jul 2007, 09:42
sumande wrote:
stevegt wrote:
Though sucking zinc lozenges has been promoted as a treatment for the common cold, research has revealed no consistent effect. Recently, however, a zinc gel applied nasally has been shown to greatly reduce the duration of colds. Since the gel contains zinc in the same form and concentration as the lozenges, the greater effectiveness of the gel must be due to the fact that cold viruses tend to concentrate in the nose, not the mouth.

In order to evaluate the argument, it would be most helpful to determine which of the following?

A. Whether zinc is effective only against colds, or also has an effect on other virally caused diseases
B. Whether there are remedies that do not contain zinc but that, when taken orally, can reduce the duration of colds
C. Whether people who frequently catch colds have a zinc deficiency
D. Whether either the zinc gel or the lozenges contain ingredients that have an impact on the activity of the zinc
E. Whether the zinc gel has an effect on the severity of cold symptoms, as well as on their duration

Has to be B. Activity of zinc cannot help us determine the part in bold. Hence, cannot be D.

agree with Suman. Even if D is true, one can't tell with confidence that cold viruses concenrate in nose, not in mouth.
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12 Jul 2007, 10:29
I agree with the D people. B. to me, seems out of scope.
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13 Jul 2007, 02:57
Should be 'E'.

In order to evaluate the argument, we need to be sure that the zinc gel reduces the cold severity as well as the cold duration. Reduction of cold duration is mentioned earlier. But reduction in cold severity is not mentioned.
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To zinc or not to zinc. [#permalink]

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13 Jul 2007, 03:52
I think the answer is D.Because it gives a reason other than what is presented in the argument,As if questions whether there are other reasons.I am only worried if i have gone out of scope.
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13 Jul 2007, 05:09
I believe it's D.

-Brajesh
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13 Jul 2007, 05:37
So, what is the OA and OE to this one? Can somebody post it?
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13 Jul 2007, 07:41
asaf wrote:
I agree with the D people. B. to me, seems out of scope.

Agree with asaf...The argument is abt zinc substances...B is way out of scope.

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13 Jul 2007, 10:05
yea it's got to be D
13 Jul 2007, 10:05
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