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08 Jun 2022, 06:49
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ChiGMAT
I didn't understand how Option B is parallel. Subject is ''electrification of lighting'' first verb is ''doubled'', where is the second verb after ''while'' for the common subject ''electrification''? Is ''cutting'' a verb? It sounds awkward to me when I read ''electrification of lighting cutting energy costs in half'', how is that a verb? Shouldn't it be 'cut'' and not ''cutting''?
Thus, I selected Option C even though it uses passive construction.
Also, I have heard in some posts that ''while'',''whereas'',''although'' should also be followed by a clause. I don't see that in Option B. If experts can comment on this, it would be helpful.
Thank You
Vighnesh
08 Jun 2022, 09:30
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Hi KarishmaB
I have learnt that Verb-ing without a comma modifies the noun or noun phrase just before it. But here in option B, the word cutting should modify electrification of lightening, but it's modifying work efficiency. Isn't option B incorrect too?
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I have learnt that Verb-ing without a comma modifies the noun or noun phrase just before it. But here in option B, the word cutting should modify electrification of lightening, but it's modifying work efficiency. Isn't option B incorrect too?
Posted from my mobile device
08 Jun 2022, 22:38
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balaganesh98
thereisaFire
Present participle (verb-ing) without a comma when used as a modifier modifies the preceding noun or noun phrase. Here, 'cutting' is not being used as a modifier. It is a part of the subordinate clause starting after the subordinating conjunction 'while.'
Electrification doubled efficiency while cutting energy costs...
Electrification doubled efficiency - main clause
while cutting energy costs... - subordinate clause (a reduced adverbial clause)
"While" is a subordinating conjunction and gives adverbial clauses. It shows simultaneous action and uses progressive.
A happened while B was happening.
When both, the main clause and the subordinate clause, have the same subject, we can skip the mention of the subject and the be verb in the while clause.
...the electrification ... doubled work efficiency while electrification was cutting energy costs in half.
becomes
...the electrification ... doubled work efficiency while cutting energy costs in half.
Both doubling and cutting was done by "electrification" so we don't need to use it again.
So (B) is correct.
VIGHNESHKAMATH
