In parts of South America, vitamin-A deficiency is a serious : GMAT Critical Reasoning (CR)
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# In parts of South America, vitamin-A deficiency is a serious

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In parts of South America, vitamin-A deficiency is a serious [#permalink]

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11 Sep 2010, 04:36
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In parts of South America, vitamin-A deficiency is a serious health problem, especially among children. In one region, agriculturists hope to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in betacarotene, which the body converts into vitamin A. The plan has good chances of success, since sweet potato is a staple of the region's diet and agriculture, and the varieties currently grown contain little beta-carotene.

which of the following, if true, most strongly supports the prediction that the plan will succeed?

a. There are other vegetables currently grown in the region that contain more beta-carotene than the currently cultivated varieties of sweet potato do.
b. The flesh of SPK004 differs from that of the currently cultivated sweet potatoes in colors and textures, so traditional foods would look somewhat different when prepared from SPK004.
c. For successful cultivation of SPK004, a soil significantly richer in nitrogen is needed than is needed for the varieties of sweet potato currently cultivated in the region.
d. There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.
e. the currently cultivated varieties of sweet potato contain no important nutrients that SPK004 lacks.
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11 Sep 2010, 07:49
D for me...
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11 Sep 2010, 09:04
Straight D ... all the remaining options provide reasons as to why the plan may not succeed.

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11 Sep 2010, 09:25
I go with E ..
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11 Sep 2010, 11:14
suyashjhawar wrote:
d. There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.
e. the currently cultivated varieties of sweet potato contain no important nutrients that SPK004 lacks.

I eliminated A, B and C as those are irrelevant or support the failure of the plan

Now to make the plan a success we need to make sure we are not loosing anything if we replace the currently cultivated sweet potatoes with the SPK004 . E states the the new potato doesn't lack anything that the other sweet potatoes have. So we can easily replace them and it will be success.

If we say no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is, then it doesn't adding anything to the arguments. We already know that the new one is richer in beta-carotene.

So E is correct
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11 Sep 2010, 12:14
Conclusion - The plan to introduce the beta-C in the diet/food by growing SPK004 has a good chance of success.
A,B,C are clearly out.

E is out because we are talking about beta-C to get Vitamin A.

Now, let discuss D. If D is not correct, it means that there are other sweet potato that contains beta-C and still people lacks Vitamin A. So the plan will fail. Hence, D is the correct answer.
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Last edited by talk2vj on 11 Sep 2010, 15:28, edited 1 time in total.
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11 Sep 2010, 12:20
E for me.

D is not correct as E has more stronger reasoning of SPK004 does not lack some of the other important nutrients.
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11 Sep 2010, 12:29
Agree with those above. Its definitely D. The goal is to increase beta-carotene. While choice E may present reasoning about how the switch between sweet potatoes will not effect people in other ways, the sole point is to focus on vitamin-A deficiency, which D delivers.
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11 Sep 2010, 12:35
I go with D since the actual argument is to have potatoes with more Bet-C.

Plz let us knw the OA.
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11 Sep 2010, 14:44
suyashjhawar wrote:
In parts of South America, vitamin-A deficiency is a serious health problem, especially among children. In one region, agriculturists hope to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in betacarotene, which the body converts into vitamin A. The plan has good chances of success, since sweet potato is a staple of the region's diet and agriculture, and the varieties currently grown contain little beta-carotene.

which of the following, if true, most strongly supports the prediction that the plan will succeed?

a. There are other vegetables currently grown in the region that contain more beta-carotene than the currently cultivated varieties of sweet potato do.
b. The flesh of SPK004 differs from that of the currently cultivated sweet potatoes in colors and textures, so traditional foods would look somewhat different when prepared from SPK004.
c. For successful cultivation of SPK004, a soil significantly richer in nitrogen is needed than is needed for the varieties of sweet potato currently cultivated in the region.
d. There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.
e. the currently cultivated varieties of sweet potato contain no important nutrients that SPK004 lacks.

I vote for choice E.

Option D was ruled out since SPK004 might not be the richest source of beta-carotene yet may offset the vitamin-A deficiency in the area. Hence even if option D is not true the plan will succeed. On the contrast, if option E was incorrect, the plan to [highlight]improve nutrition[/highlight] might not succeed.
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11 Sep 2010, 14:57
IMO D. A, B and C weekend the results. E is talking of nutrients in general
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11 Sep 2010, 20:46
[fraction][/fraction]

OA is E.In this case, especially given the extant differences between the potatoes (one contains b-carotene and the other doesn't), it's quite reasonable to raise the following objection: "but what about other nutrients? if spk004 has b-carotene but other potatoes don't, then might other potatoes have some other nutrient that's lacking in spk004?"legitimate objection.
e) dispenses with this objection, so it strengthens the argument.
d)on the other hand, is irrelevant. the argument is concerned only with showing that the plan will succeed, NOT with showing that the plan is optimal or better than other plans.
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12 Sep 2010, 02:09
The OA is a lot like an assumption
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18 Sep 2010, 06:17
this is og question not manhattan q
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Re: Manhattan CR   [#permalink] 18 Sep 2010, 06:17
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