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Eating beets significantly lowers the risk of cancer

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Eating beets significantly lowers the risk of cancer, according to an article in a nutritional magazine. The article refers to a study that found that people who consumed one or more beets per day were half as likely to be diagnosed with the disease as people who did not.

Which of the following, if true, most weakens the argument in the magazine article?

A) Another study found that people who consumed one tablespoon of flax seed oil per day were more than four times less likely to be diagnosed with cancer as those who did not.

B) Participants in the study reported consuming no vegetables other than beets.

C) The study was only conducted in one city.

D) In another experiment, cancer patients who ate one or more beets per day were no more likely to recover than those who ate no beets.

E) The participants in the study who ate beets were more likely to exercise regularly than those who did not eat beets.

[Reveal] Spoiler:
OA - In a while!

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Re: Eating beets significantly lowers the risk of cancer [#permalink]

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New post 01 Feb 2015, 07:48
A) Another study found that people who consumed one tablespoon of flax seed oil per day were more than four times less likely to be diagnosed with cancer as those who did not. The argument is only concerned with beets, not flax seed oil. This is out of scope.

B) Participants in the study reported consuming no vegetables other than beets. This strengthens the argument by reducing alternative causes between what participants were eating and how likely they were to be diagnosed with cancer.

C) The study was only conducted in one city. This does not explain the discrepancy between those who ate beets and those who did not.

D) In another experiment, cancer patients who ate one or more beets per day were no more likely to recover than those who ate no beets. The argument is concerned with those being diagnosed with cancer, not those recovering from cancer. This is out of scope.

E) The participants in the study who ate beets were more likely to exercise regularly than those who did not eat beets. This is the correct answer. It offers an alternative cause for why the beet-eating participants might have lowered their chances of getting cancer.

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Re: Eating beets significantly lowers the risk of cancer [#permalink]

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New post 01 Feb 2015, 19:42
E seems to be the viable option to weaken the conclusion by introducing alternative(excercise). OA please..

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Re: Eating beets significantly lowers the risk of cancer [#permalink]

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New post 05 Feb 2015, 12:41
E for me, you have to pick an option which can weaken the assumption.
Apart from beets there could be something else which has helped in lowering the risk of cancer.
Statement E points out that. Waiting for OA...

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New post 07 Feb 2015, 05:47
I think its E because it gives another reason which can contribute to lowering the risk of cancer

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New post 13 Feb 2015, 00:44
A - OOS.
B - This indicates another factor involving, which is vegetables, but it affects all participants. It does not create any difference in the 2 groups.
C - Still can contribute to the validity of the conclusion.
D - OOS. the argument ony deals with the risk reduction, not with the disease recovery.
E - It creates an alternative reason for the research result. CORRECT.

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Re: Eating beets significantly lowers the risk of cancer [#permalink]

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New post 30 Aug 2017, 20:09
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Eating beets significantly lowers the risk of cancer [#permalink]

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New post 30 Aug 2017, 22:27
Option E seems to weaken by providing alternate reason

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Re: Eating beets significantly lowers the risk of cancer [#permalink]

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New post 01 Sep 2017, 01:26
E is the option as it gives an alternate reason for the effect.

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Re: Eating beets significantly lowers the risk of cancer   [#permalink] 01 Sep 2017, 01:26
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