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Recently physicians have determined that stomach ulcers are

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Recently physicians have determined that stomach ulcers are  [#permalink] New post 30 Oct 2009, 12:28
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

95% (01:33) correct 5% (00:13) wrong based on 21 sessions
Recently physicians have determined that stomach ulcers are not caused by stress, alcohol, or rich foods, but a bacterium that dwells in the mucous lining of the stomach.
A. not caused by stress, alcohol, or rich foods, but
B. not caused by stress, alcohol, or rich foods, but are by
C. caused not by stress, alcohol, or rich foods, but by
D. caused not by stress, alcohol, and rich foods, but
E. caused not by stress, alcohol, and rich foods, but are by


OA:
[Reveal] Spoiler:
C


Please.explanations.
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Re: stomach ulcers [#permalink] New post 30 Oct 2009, 13:00
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tejal777 wrote:
Recently physicians have determined that stomach ulcers are not caused by stress, alcohol, or rich foods, but a bacterium that dwells in the mucous lining of the stomach.
A. not caused by stress, alcohol, or rich foods, but
B. not caused by stress, alcohol, or rich foods, but are by
C. caused not by stress, alcohol, or rich foods, but by
D. caused not by stress, alcohol, and rich foods, but
E. caused not by stress, alcohol, and rich foods, but are by


OA:
[Reveal] Spoiler:
C


Please.explanations.



Is the OA C ?

Idiom, Parallel construction

Not by X, But by Y

caused not by (stress, alcohol, or rich foods), but by (a bacterium that dwells in the mucous lining of the stomach.)
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Re: stomach ulcers [#permalink] New post 30 Oct 2009, 13:18
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tejal777 wrote:
Recently physicians have determined that stomach ulcers are not caused by stress, alcohol, or rich foods, but a bacterium that dwells in the mucous lining of the stomach.
A. not caused by stress, alcohol, or rich foods, but
B. not caused by stress, alcohol, or rich foods, but are by
C. caused not by stress, alcohol, or rich foods, but by
D. caused not by stress, alcohol, and rich foods, but
E. caused not by stress, alcohol, and rich foods, but are by


OA:
[Reveal] Spoiler:
C


Please.explanations.


Hi
this question tests your knowledge of parallelism

The correct idiom is "not X but Y". X and Y must be parallel

Note that A and B have a construction "not CAUSED ........ but Y'
If the writer wants to write that way, it should be "not CAUSED X, but CAUSED Y"


In this case, X and Y both have to have a "by" inside them.
The only alternative that has a structure "caused not by X, but by Y" is C

sounds good?

:)
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Re: stomach ulcers [#permalink] New post 30 Oct 2009, 14:26
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yes C - parallelism "not by x but by Y"
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Re: stomach ulcers [#permalink] New post 29 Aug 2011, 03:30
Recently physicians have determined that stomach ulcers are not caused by stress, alcohol, or rich foods, but a bacterium that dwells in the mucous lining of the stomach.
A. not caused by stress, alcohol, or rich foods, but
B. not caused by stress, alcohol, or rich foods, but are by
C. caused not by stress, alcohol, or rich foods, but by
D. caused not by stress, alcohol, and rich foods, but
E. caused not by stress, alcohol, and rich foods, but are by

Parallelism : caused not by... but by - correct
OR Caused by not... but.. - correct.
anything else is wrong.
and vs. or. and implies a combination and alters the meaning from A. so C is correct
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Hope this post helps! :)
Your kudos will let me know.

Re: stomach ulcers   [#permalink] 29 Aug 2011, 03:30
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