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# A row of upright fan-shaped plates running down the spine

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A row of upright fan-shaped plates running down the spine [#permalink]

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20 Apr 2012, 03:55
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A row of upright fan-shaped plates running down the spine provided the Stegosaurus dinosaur with an especially efficient solar heating and cooling system to allow them to move comfortably through different climatic regions.

A)to allow them to move comfortably
B)to allow it a comfortable movement
C)that allowed it to move comfortably
D)that allowed their comfortable movement
E)Allowing them to move comfortably
[Reveal] Spoiler: OA

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Last edited by hfbamafan on 20 Apr 2012, 04:14, edited 1 time in total.
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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20 Apr 2012, 04:12
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As we are talking about the Stegosaurus dinosaur here, 'them' and 'their' is wrong. That leaves us with (B) and (C).

Of these, (C) is the best choice as it is clearer in meaning and also better structured.

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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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28 Jul 2012, 13:35
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B is wrong because "a comfortable movement" doesn't really make sense. The dinosaur moved, but it didn't "have a movement."
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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08 Mar 2013, 11:53
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For Sachin:

Using the correct pronoun ("it" instead of "they") would definitely improve E, but we'd need a comma before "allowing." Without a comma, the last part (from "an especially" to the end of the sentence) becomes one enormous noun phrase, making the sentence very hard to read. Adding the comma turns the underlined portion into an adverbial modifier that modifies the previous clause. That doesn't quite match C, in which we are modifying the noun ("system"), but it would work.

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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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08 Mar 2013, 12:20
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For Marcab:
"That" modifies "system," but what do we know about the system? It's "an especially efficient solar heating and cooling system." We don't want to treat individual parts of the sentence as if the rest isn't there.

Here's another example:

"My daughter has a fluffy toy lion that often sits at breakfast with us."

Am I saying that a lion really sits at breakfast with us? Well, yes, a toy lion. I wouldn't want to isolate the portion from "lion" on and ignore the preceding modifiers. Whether we say "that often sits . . . " modifies only "lion" or the whole noun phrase, the meaning is the same. The lion sits with us, but it is a fluffy toy.

In some cases, when we have a noun phrase, we are clearly modifying an earlier noun in the phrase. For instance, I might say "The King of Sweden, who is vacationing in Morocco, has a bad sunburn." Clearly it is the king, not Sweden, who is vacationing. This is correct usage. The "preceding noun" in this case is the noun phrase "The King of Sweden." In other cases, I might need to interpret flexibly depending on meaning:

On the table there was a basket of chips that were cold and stale. (The chips were cold and stale.)
On the table there was a basket of chips that looked like it had been sitting there for a month. (The basket of chips had been sitting there.)

I hope this helps!
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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21 May 2014, 04:56
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vietmoi999 wrote:
hfbamafan wrote:
A row of upright fan-shaped plates running down the spine provided the Stegosaurus dinosaur with an especially efficient solar heating and cooling system to allow them to move comfortably through different climatic regions.

A)to allow them to move comfortably
B)to allow it a comfortable movement
C)that allowed it to move comfortably
D)that allowed their comfortable movement
E)Allowing them to move comfortably

not easy to see B and C

B means "plates" allow it something
C means "system " allow it to do something.

the subject of "allow" is quite different between B and C. we can not eliminate B , using grammar rule and logicness to consider B when B is alone. we can only eliminate B when we see both B and C. it is clear that the intended meaning is in C.

the situation "can not eliminate B, using grammar rule and logic" is popular on gmat sc. we can call this situation "realize the intended meaning"

am I correct?

Hi vietmoi999,

I think you have made an error in determining the subject verb pairs in the given sentence. However I agree completely with you that sometimes grammar cannot eliminate all the options, we have to go for the intended meaning of the sentence. Let's try to understand the meaning conveyed by this sentence and options B and C.

A row of upright fan-shaped plates running down the spine provided the Stegosaurus dinosaur
o with an especially efficient solar heating and cooling system
• to allow them to move comfortably through different climatic regions.

MEANING

• So, this sentence tell us that a row of some specific plates (these plates ran down the spine) provided the Stegosaurus dinosaur with a certain system.
o This system was an efficient solar heating and cooling system.
• To allow the dinosaur to move comfortably through different climate regions.

B.) to allow it a comfortable movement

This means that the purpose of the system was to allow the dinosaur a comfortable movement.

C.) that allowed it to move comfortably

This means that the system allowed the dinosaur to move comfortably.

Hope this helps!
Manyu
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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20 Apr 2012, 04:15
I chose E for some reason could someone explain why E is wrong.

Thanks
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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20 Apr 2012, 15:38
hfbamafan wrote:
I chose E for some reason could someone explain why E is wrong.

Thanks

E is wrong because it uses "Them", when the subject is singular stegosaurus dinosaur, A is incorrect for same reason.
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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23 Jul 2012, 23:14
A,B & E are out coz of 'them' and 'their' since dinosaur is singular and should have 'it'...that leaves us with C & D...i chose C coz A row of uptight fan shaped plates.......that allowed sounds better than A row of uptight fan shaped plates....to allow
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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28 Jul 2012, 03:38
why b is wrong here. any expert suggestion??
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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30 Jul 2012, 03:03
hfbamafan wrote:
A row of upright fan-shaped plates running down the spine provided the Stegosaurus dinosaur with an especially efficient solar heating and cooling system to allow them to move comfortably through different climatic regions.

A)to allow them to move comfortably
B)to allow it a comfortable movement
C)that allowed it to move comfortably
D)that allowed their comfortable movement
E)Allowing them to move comfortably

S-V agreement err so eliminated A, D & E
B vs. C: Chose B
"to move comfortably" is succinct & eliminates any awkwardness...I don't spot anything else wrong with B

Cheers
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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30 Jul 2012, 04:25
B)to allow it a comfortable movement

To add over the given explanations why B is wrong, I think the phrase is not logically connected. "To Allow it" and "A comfortable Movement" should be gramatically connected. In option B "A comfortable movement" is used as a noun. An appropriate usage would have been - "To allow it to have a comfortable movement .."
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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30 Jul 2012, 08:51
GyanOne wrote:
As we are talking about the Stegosaurus dinosaur here, 'them' and 'their' is wrong. That leaves us with (B) and (C).

Of these, (C) is the best choice as it is clearer in meaning and also better structured.

HI,

What apart from S_V error is there any other mistake in E?

Please tell me if "Allowing it to move comfortably" is correct or not.
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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28 Oct 2012, 21:31
vivekdixit07 wrote:
GyanOne wrote:
As we are talking about the Stegosaurus dinosaur here, 'them' and 'their' is wrong. That leaves us with (B) and (C).

Of these, (C) is the best choice as it is clearer in meaning and also better structured.

HI,

What apart from S_V error is there any other mistake in E?

Please tell me if "Allowing it to move comfortably" is correct or not.

Yes, it is correct. There is just the SV agreement error and if you eliminate that then the sentence is correct.
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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20 Nov 2012, 00:46
Hi Friends/experts,

My two cents on the question. "C" is definitely the most clear answer, however this is not a good GMAT question.

A row of upright fan-shaped plates running down the spine provided the Stegosaurus dinosaur with an especially efficient solar heating and cooling system that allowed it to move comfortably

Do you see what I pointed out here? "it" is never used with living things! In this case it has to be either he/she. I guess GMAT would not do that!

Experts,
Do you agree?

I wasted 10-15 seconds thinking about it. But at the end, I knew this is the only answer that makes most sense.

-K
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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20 Nov 2012, 02:02
hfbamafan wrote:
A row of upright fan-shaped plates running down the spine provided the Stegosaurus dinosaur with an especially efficient solar heating and cooling system to allow them to move comfortably through different climatic regions.

A)to allow them to move comfortably
B)to allow it a comfortable movement
C)that allowed it to move comfortably
D)that allowed their comfortable movement
E)Allowing them to move comfortably

I went with E without checking "them" in it...
I was wrong

I have couple of doubts...

A row of upright fan-shaped plates running down the spine provided the Stegosaurus dinosaur with an especially efficient solar heating and cooling system , allowing it to move comfortably through different climatic regions.
If this was case it would be more clear right???
Because comma with -ING modifier will modify whole preceding clause?
Wont this be more sensible answer, though its not listed in choices...

If i miss anything pls correct me...
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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09 Dec 2012, 23:58
What is "that" referring to in the correct answer choice?
I thought "that" may refer to just cooling system and thereby change the meaning, but I was wrong.
Shouldn't the "that" just refer to the closest one?
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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10 Dec 2012, 02:09
Hi Marcab,

"that" correctly refers to the cooling system. It's the cooling system that helps dino's to move through diff. climatic conditions.

I hope I clarified your concern.

thanks,

-K
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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10 Dec 2012, 02:15
Hii Kartik.
If "that" were to refer to just "cooling system" then it may not enable the animal to move comfortably through "different" climatic regions. Moreover it changes the meaning also.
After a close inspection I realised that its the "system" that is being modified by "that" and this "system" is the "solar heating and cooling system".
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Re: A row of upright fan-shaped plates running down the spine [#permalink]

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10 Dec 2012, 02:18
Hi Marcab,

I skipped to write the complete part my bad. "that refers" to the COMPLETE system i.e. solar and cooling system.

thanks,

-K
Re: A row of upright fan-shaped plates running down the spine   [#permalink] 10 Dec 2012, 02:18

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