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Because the 2009 swine flu was caused by the H1N1 virus the

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Because the 2009 swine flu was caused by the H1N1 virus the [#permalink] New post 06 Apr 2012, 13:30
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Because the 2009 swine flu was caused by the H1N1 virus – the same strain of influenza that had caused the massive 1918 flu pandemic – was why researchers were convinced that it had the potential of killing many millions of people, especially children and the elderly.

A. Because the 2009 swine flu was caused by the H1N1 virus – the same strain of influenza that had caused the massive 1918 flu pandemic – was why researchers were convinced that it had the potential of killing many millions of people, especially children and the elderly.

B. Caused by the H1N1 virus, the same strain of influenza that caused the massive 1918 flu pandemic, researchers were convinced that the 2009 swine flu could potentially kill many millions of people, and in particular children and the elderly.

C. The H1N1 virus, the same strain of influenza caused the massive flu pandemic of 1918, also caused the 2009 swine flu; therefore, researchers were convinced that it had the potential of killing many millions of people, children and the elderly included.

D. Because the 2009 swine flu was caused by the H1N1 virus – the same strain of influenza that caused the massive flu pandemic of 1918 – researchers were convinced that it had the potential to kill many millions of people, particularly children and the elderly.

E. Researchers were convinced that the 2009 swine flu – which could potentially cause the killing of millions of people, including children and the elderly – was caused by the H1N1 virus, the same strain of influenza that had caused the massive flu pandemic of 1918.


What are your thoughts? Please provide explanations~
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Re: H1N1 Swine Flu [#permalink] New post 07 Apr 2012, 06:31
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This is an issue of style, structure and modification

A. Because the 2009 swine flu was caused by the H1N1 virus – the same strain of influenza that had caused the massive 1918 flu pandemic – was why researchers were convinced that it had the potential of killing many millions of people, especially children and the elderly. ------- wrong: ‘Because and why’ are redundant

B. Caused by the H1N1 virus, the same strain of influenza that caused the massive 1918 flu pandemic, researchers were convinced that the 2009 swine flu could potentially kill many millions of people, and in particular children and the elderly…….Improper modification. The choice says researchers were caused by virus.

C. The H1N1 virus, the same strain of influenza caused the massive flu pandemic of 1918, also caused the 2009 swine flu; therefore, researchers were convinced that it had the potential of killing many millions of people, children and the elderly included. ------ a run-on sentence; the subject H1N1 has two verbs ‘caused Influenza and also caused’.

D. Because the 2009 swine flu was caused by the H1N1 virus – the same strain of influenza that caused the massive flu pandemic of 1918 – researchers were convinced that it had the potential to kill many millions of people, particularly children and the elderly. Correct choice. The problem of two verbs is overcome by converting the first part into a sub-clause.

E. Researchers were convinced that the 2009 swine flu – which could potentially cause the killing of millions of people, including children and the elderly – was caused by the H1N1 virus, the same strain of influenza that had caused the massive flu pandemic of 1918 -----. it is improper to use a connective relative pronoun in a parenthetical set up; in addition, ‘potentially cause the killing’ is unduly verbose
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Re: H1N1 Swine Flu [#permalink] New post 07 Apr 2012, 11:15
thanks daagh. i was down to choice D and E. i decided to go with choice E cause D sounded redundant to me.

"...it had the potential to kill many millions of people"

i thought it would be better to use either many people or millions of people.

E didnt seem to have any redundancy but i can see the other errors you've stated.
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Re: H1N1 Swine Flu [#permalink] New post 07 Apr 2012, 18:44
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I agree cent percent. D could have been a lot more crisp.
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Re: H1N1 Swine Flu [#permalink] New post 07 Apr 2012, 19:55
+1 D

Ya even I narrowed it down to D & E but went for E because it sounded a lot better than E
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Re: H1N1 Swine Flu [#permalink] New post 07 Apr 2012, 22:20
Between D and E,

It in D refers to what ? Swine Flu or H1N1 Virus.

E remove the clause with which and read it sounds clear.

E is better.
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Re: Because the 2009 swine flu was caused by the H1N1 virus the [#permalink] New post 18 Jan 2013, 13:29
Isnt the "It" in option 'D' ambiguous? Its not clear whether it refers to Swine Flu or the Virus?
Can someone explain this?
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Re: Because the 2009 swine flu was caused by the H1N1 virus the [#permalink] New post 18 Jan 2013, 16:20
This one tripped me up but I think I got it.


C. The H1N1 virus, the same strain of influenza caused the massive flu pandemic of 1918, also caused the 2009 swine flu; therefore, researchers were convinced that it had the potential of killing many millions of people, children and the elderly included. wrong because of pronoun it - referring to flu, pandemic, or strain

D. Because the 2009 swine flu was caused by the H1N1 virus – the same strain of influenza that caused the massive flu pandemic of 1918 – researchers were convinced that it had the potential to kill many millions of people, particularly children and the elderly. I think is correct, but there is an ambiguous it that concerns me

E. Researchers were convinced that the 2009 swine flu – which could potentially cause the killing of millions of people, including children and the elderly – was caused by the H1N1 virus, the same strain of influenza that had caused the massive flu pandemic of 1918. - tense is way off, '-which could potentially kill millions of people' - this pandemic already happened it can't potentially do something it already did its action.
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Re: Because the 2009 swine flu was caused by the H1N1 virus the [#permalink] New post 19 Jan 2013, 13:59
E completely changes the meaning of the sentence, in E the researchers are convinced that the flue was cause by the H1n1 whereas in the original sentence this is just the argument that led the researchers to think it could killed millions of people

therefore B is the only good choice, the sentence is clear and "many millions of people" is not really redundant. It gives additional information compared to "many people" (how many ? 100 could be considered many people...) and "millions of people" (well I guess "millions of people" could have the same meaning, but still addind "many" through not absolutely necessary emphasizes the main conclusion of the argument)

didn't see the ambiguous "it" I guess D can go away with it since all the others phrases have very strong meaning/grammar problems
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Re: Because the 2009 swine flu was caused by the H1N1 virus the [#permalink] New post 22 Jan 2013, 14:12
The official answer for this question from MGMAT is "D" and here is the explanation regarding the dubious "it" in the answer choice "D" from the MGMAT moderator:-

Pronoun ambiguity is a real pain on the GMAT. For a while we thought that every pronoun had to have a clear referent, but then we saw that the GMAT sometimes uses pronoun ambiguity and calls the answers containing it correct.

You're right . . . we only have two possible singular nouns for "it" to refer to--the flu and the virus. You can try each one as a replacement for "it" and see which one logically fits. The people are actually being killed by the flu, not necessarily the virus, since other people may have been exposed to the virus and not gotten sick. Thus, the GMAT would probably think that this is not particularly ambiguous. As long as you have clear cut reasons to get rid of other answers I think you can feel comfortable choosing this answer.

The takeaway is to be careful using pronoun ambiguity to make eliminations. Try to get rid of more obvious grammar problems first.
Re: Because the 2009 swine flu was caused by the H1N1 virus the   [#permalink] 22 Jan 2013, 14:12
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