Knewton Sentence Correction:very diff , exper help needed

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Theoretically, water could remain in liquid form indefinitely in extremely low-energy environments, prevented from evaporating its molecules as a result of an insufficient level of kinetic energy present in the molecules on the liquid's surface


(A)prevented from evaporating its molecules as a result of
(B)prevented from having its molecules evaporated by
(C)its molecules prevented from evaporating by
(D)its molecules prevented from being evaporated as a result of
(E)preventing its molecules from evaporating by

Answer:C

how can we deduce this answer.
Source: — Sentence Correction |

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by sunnyjohn » Thu Aug 04, 2011 8:51 pm
Hi Ruch1235,

Please dont give answer like this. This reduces the interest to solve the question.If you want to give answer, use[spoiler] "Spoiler"[/spoiler].

Regarding your question, I believe its a modifier type question.

Theoretically, water could remain in liquid form indefinitely in extremely low-energy environments, prevented from evaporating its molecules as a result of an insufficient level of kinetic energy present in the molecules on the liquid's surface.

Theoretically, water could X, prevented from Y as a result of an insufficient level of kinetic energy present in the molecules on the liquid's surface.

OR

prevented from Y as a result of an Z, water could X.

As you can see
first clear issue is - "prevented", it seems to indicate that water was prevented first and then something happened.

Second clear issue is - "as a result of" --> It just doesn't sound good.

On the base of -


(A)prevented from evaporating its molecules as a result of
Out based on first issue.
(B)prevented from having its molecules evaporated by
Out based on first issue.
(C)its molecules prevented from evaporating by
Out of C and D, C is ofcourse more concise and clear than D.
(D)its molecules prevented from being evaporated as a result of

(E)preventing its molecules from evaporating by
It seems to indicate that water could remain in liquid form in order to prevent its molecule.

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by Sartaj » Sat Aug 06, 2011 8:10 pm
Please follow the sense of the argument. A and B mean to say the "water wanted to evaporate its molecules but somebody prevented it from doing so". Since water is non-living thing, this does not make sense. E means that water is preventing its molecules from evaporation. This is again wrong.

Out of C and D?

As a rule, avoid the use of being in GMAT. D is too wordy.

C is appropriate and correctly conveys the message that low level of kinetic energy prevented its molecules from evaporation.

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