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# Under high pressure and intense heat, graphite, the most

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Re: Under high pressure and intense heat, graphite, the most  [#permalink]

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14 Nov 2017, 07:39
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"changes into the substance commonly referred to as diamond and remaining this way"

The one takeaway from this question is that whenever one sees the construction " and +verbing", it should flash a red signal that that it is a precursor to a potential parallelism error. Immediately look for a similar participle construction on the left of 'and', very often it has been seen that there is a verbed clause rather than a present participle. We can remove a good chunk of faulty choices, as the at least three choices that we can dump in one stone in this given case.
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Re: Under high pressure and intense heat, graphite, the most  [#permalink]

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14 Nov 2017, 23:18
az780 wrote:
Under high pressure and intense heat, graphite, the most stable form of pure carbon, changes into the substance commonly referred to as diamond and remaining this way whether or not the heat and pressure are removed.

(A) remaining this way whether or not
(B) remaining like that even as
(C) remaining as such whether or not
(D) remains in this way although
(E) remains thus even when

Source: OG verbal review 2: Q45.

Read Stem: AND signifies parallelism, 'whether or not' is redundant- possibly efficiency in play also.
5 sec scan O answer choices reveals: split between remaining and remains.
Remaining must be changed to 'remains' to be parallel with 'changes'. Eliminate all answer choices breaking this - (A),(B), and (C) are gone.

(D) - tricky, but read the sentence again. 'Although' implies the 'heat and pressure are removed' under 'high pressure and heat'... doesn't make sense to me. Eliminate D
(E) risky seeing 'thus' but this retains meaning. Answer
Re: Under high pressure and intense heat, graphite, the most &nbs [#permalink] 14 Nov 2017, 23:18

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