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Scientists have developed a vast network of seismographs that monitor

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Senior Manager
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Scientists have developed a vast network of seismographs that monitor [#permalink]

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New post 24 Mar 2017, 20:04
2
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

50% (12:05) correct 50% (01:24) wrong based on 58 sessions

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Scientists have developed a vast network of seismographs that monitor earthquakes, volcanic eruptions, and powerful explosions throughout the world to facilitate disaster response, scientific research, and global security.

A. have developed a vast network of seismographs that monitor earthquakes, volcanic eruptions, and powerful explosions
B. have developed a vast network of seismographs so that they can monitor earthquakes, volcanic eruptions, and powerful explosions
C. monitor earthquakes, volcanic eruptions, and powerful explosions throughout the world with a vast network of seismographs that they have developed
D. monitor earthquakes, as well as volcanic eruptions and powerful explosions, with a vast network of seismographs throughout the world that they have developed
E. have developed a vast network that monitors earthquakes, volcanic eruptions, and powerful explosions throughout the world with seismographs

Source: McGraw-Hill's GMAT

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Re: Scientists have developed a vast network of seismographs that monitor [#permalink]

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New post 24 Mar 2017, 22:20
Can anybody explain why the answer is (A).

I think -

A. have developed a vast network of seismographs that monitor earthquakes, volcanic eruptions, and powerful explosions

seismographs that monitor earthquakes, throughout the world to facilitate disaster response, scientific research, and global security. ?


do seismographs monitor earthquakes.. to facilitate... scientific research, and global security. ?
I think it is what scientists do.

B. have developed a vast network of seismographs so that they can monitor earthquakes, volcanic eruptions, and powerful explosions

B looks more reasonable.
I think,ans could be (B).
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Re: Scientists have developed a vast network of seismographs that monitor [#permalink]

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New post 24 Mar 2017, 23:24
After boiling down to A and B even I had chosen B initially but after looking at the original answer I realized that in B what 'they' refers to might be ambiguous. It can either refer to the scientists or to the seismographs. Hence, 'A' might be a more accurate answer.
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Re: Scientists have developed a vast network of seismographs that monitor [#permalink]

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New post 24 Mar 2017, 23:32
Scientists have developed a vast network of seismographs that monitor earthquakes, volcanic eruptions, and powerful explosions throughout the world to facilitate disaster response, scientific research, and global security.

A. have developed a vast network of seismographs that monitor earthquakes, volcanic eruptions, and powerful explosions
B. have developed a vast network of seismographs so that they can monitor earthquakes, volcanic eruptions, and powerful explosions
C. monitor earthquakes, volcanic eruptions, and powerful explosions throughout the world with a vast network of seismographs that they have developed
D. monitor earthquakes, as well as volcanic eruptions and powerful explosions, with a vast network of seismographs throughout the world that they have developed
E. have developed a vast network that monitors earthquakes, volcanic eruptions, and powerful explosions throughout the world with seismographs

Will go for option A
In this case it is the vast network that will facilitate disaster response, scientific research, and global security not the scientist. hence option A is the correct answer.
Re: Scientists have developed a vast network of seismographs that monitor   [#permalink] 24 Mar 2017, 23:32
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Scientists have developed a vast network of seismographs that monitor

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