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# In their native habit, amaryllis plants go dormant when the

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In their native habit, amaryllis plants go dormant when the [#permalink]

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10 Mar 2010, 12:46
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In their native habit, amaryllis plants go dormant when the soil in which they are growing dries out during the dry season. Therefore, if amaryllis plants kept as houseplants are to thrive, water should be withheld from them during part of the year so that the plants go dormant.

Which one of the following is an assumption on which the argument depends?

(A) Most kinds of plants go dormant at some time or other during the year.
(B) Amaryllis are more difficult keep as houseplants than other kinds of plants are.
(C) Water should be withheld from amaryllis plants kept as houseplants during the exact time of year that corresponds to the dry season in their native habitat.
(D) Any amaryllis plant that fails to thrive is likely to have been dormant for too short a time.
(E) Going dormant benefits amaryllis plants in their native habitat in some way other than simply preventing death during overly dry periods.
[Reveal] Spoiler: OA
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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10 Mar 2010, 13:23
IMO it is C.
(A) Most kinds of plants go dormant at some time or other during the year.
>> Looks like a premise.
(B) Amaryllis are more difficult keep as houseplants than other kinds of plants are.
>> Conclusion.
(C) Water should be withheld from amaryllis plants kept as houseplants during the exact time of year that corresponds to the dry season in their native habitat.
>> Assumption.
(D) Any amaryllis plant that fails to thrive is likely to have been dormant for too short a time.
>> Inference
(E) Going dormant benefits amaryllis plants in their native habitat in some way other than simply preventing death during overly dry periods
>> Premise.
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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10 Mar 2010, 14:02
interesting question.

I went with (E).
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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10 Mar 2010, 14:31
In their native habit, amaryllis plants go dormant when the soil in which they are growing dries out during the dry season. Therefore, if amaryllis plants kept as houseplants are to thrive, water should be withheld from them during part of the year so that the plants go dormant.
Which one of the following is an assumption on which the argument depends?
IMO:
(C) Water should be withheld from amaryllis plants kept as houseplants during the exact time of year that corresponds to the dry season in their native habitat.

I initally juggled btw E and C..but thought this way; conclusion here is: w/o water for sometime makes them dormant.
assumption: keeping them dormant the plants thrive.
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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10 Mar 2010, 20:04

In D, it says that any plants that does not thrive is because they haven't been dormat for long enough of a period. The conclusion of argument is that the if we want the plant to thrive, so we withhold water from it. The assumption is that in order to thrive, the plant must be dormant during part of the year. If we negate this assumption, then it is saying that the plant doesn't not need to be dormant for the part of the year in order to thrive, so it means that we don't need to withhold water. This would destroy the conclusion.

hope this make sense. what is the OA?
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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10 Mar 2010, 22:11
bakfed, we have narrowed down the option between C & E. Those who choose C explain their reason. What is your reason for choosing E?
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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11 Mar 2010, 06:56
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This is how I see it:

Plants go dormant because soil dries out.

Conclusion: If plants are kept in house, they should be withheld from water in order to thrive.

Clearly, you want to keep plants dormant even in home, so going dormant benefits plants in some other way.

IMO E.
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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11 Mar 2010, 07:00
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angel2009 wrote:
bakfed, we have narrowed down the option between C & E. Those who choose C explain their reason. What is your reason for choosing E?

why C or E? IMO the correct answer should be D, as it is the only assumption that adresses "thriving" of the plant.
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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11 Mar 2010, 07:20
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In their native habit, amaryllis plants go dormant when the soil in which they are growing dries out during the dry season. Therefore, if amaryllis plants kept as houseplants are to thrive, water should be withheld from them during part of the year so that the plants go dormant.

I would pick (D) because that is the only option which talks about the connection between the thriving of plant and going dormant.
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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11 Mar 2010, 12:59
I don't really know why I went with (E) - I actually wish I knew. Most of the CR just jump out at me and most of the time, I just somehow get them right (not saying that I'm right for this particular question).
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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25 Mar 2010, 06:54
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So you choose CR by intuition , great . OA is E
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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25 Mar 2010, 11:12
angel2009 wrote:
So you choose CR by intuition , great . OA is E

Assumption questions I usually go with intuition and I get most of them right. For weaken/strengthening question, I follow a more systematic method.
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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25 Mar 2010, 13:57
I also narrowed down to C and E and E over C. Great to know that OA is E. I choose E becuase C is stated in passage.
angel2009 wrote:
So you choose CR by intuition , great . OA is E
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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25 Mar 2010, 20:18
Premise 1 - In their native habit, amaryllis plants go dormant when the soil in which they are growing dries out during the dry season.
Premise 2 - if amaryllis plants kept as houseplants are to thrive.
Conslusion - water should be withheld from them during part of the year so that the plants go dormant

Here premise 2 is closely linked to conclusion.

Premise 2 mentions "thrive" that means benefit. So we need to find an answer that explains/suggest the benefit of plant going dormant.

And E mentions the benefit. hence E.
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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27 Mar 2010, 07:46
Chose E
Was not that confident with the answer
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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07 Apr 2010, 09:13
Well I chose D over E.
But both are good options. If possible please post the OA explanation from the source.

Without D & E, you cannot argue in favor or forced dormancy.
Those who selected D, could you share why did you reject E?
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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07 Apr 2010, 10:01
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hey i was also stuck with D and E.

but now u know OA is E.
D sounds more like proper inference drawn frm the conclusion,where E looks assumption.
and tht's y i feel its E.
any opinion ?
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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07 Apr 2010, 10:35
AGREE WITH OA..IT HAS TO BE E ,NO OTHER OPTION EXPOSES THE HIDDEN ASSUMTION
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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08 Apr 2010, 03:34
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IMO D. no other option touches on houseplants and dormant.

In my view, if E is the assumption, it is not strong enough to lead to the conclusion as it specifically focuses on dormant in the native habitat.

Any expert to weigh in?
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Re: In their native habit, amaryllis plants go dormant when the [#permalink]

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04 Mar 2012, 21:55
Hi

Could someone explain the answer here?

Thanks
Re: In their native habit, amaryllis plants go dormant when the   [#permalink] 04 Mar 2012, 21:55

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