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Bunuel
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Bunuel
The newly launched aircraft engine providing a 50% reduction in noise, double-digit improvements in fuel efficiency and environmental emissions has been hailed by the aviation industry.


(A) The newly launched aircraft engine providing a 50% reduction in noise, double-digit improvements in fuel efficiency and environmental emissions has

(B) Providing a 50% reduction in noise, double-digit improvements in fuel efficiency and environmental emissions, the newly launched aircraft engine has

(C) The newly launched aircraft engine provides a 50% reduction in noise and doubledigit improvements in fuel efficiency and environmental emissions has

(D) The newly launched aircraft engine, which provides a 50% reduction in noise and double-digit improvements in fuel efficiency and environmental emissions, has

(E) Providing a 50% reduction in noise, the newly launched aircraft engine is also providing double-digit improvements in fuel efficiency and environmental emissions having





Official Explanation:



Answer: D

(A) It’s confusing how many things the new engine offers—if it’s two things (reduction and improvements) then we need an and before improvements. If it is three things (reduction, improvements, environmental emissions) then environmental emissions is not parallel to the other two items.

(B) Same as A.

(C) This option correctly uses and before improvements. However, we require another and before has because the sentence as a whole is telling us two things about the aircraft engine—that it provides the two features (reduction and improvement) and that it has been hailed by the aviation industry.

(D) The correct answer.

(E) Very awkward and confusing construction. D is much more concise and clear.
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A) The newly launched aircraft engine providing a 50% reduction in noise, double-digit improvements in fuel efficiency and environmental emissions has parallel marker AND is missing plus wrong modifier

(B) Providing a 50% reduction in noise, double-digit improvements in fuel efficiency and environmental emissions, the newly launched aircraft engine has parallel marker AND is missing

(C) The newly launched aircraft engine provides a 50% reduction in noise and doubledigit improvements in fuel efficiency and environmental emissions has wrong modifier

(D) The newly launched aircraft engine, which provides a 50% reduction in noise and double-digit improvements in fuel efficiency and environmental emissions, has correct modifier and parallelism marker and

(E) Providing a 50% reduction in noise, the newly launched aircraft engine is also providing double-digit improvements in fuel efficiency and environmental emissions having wrong construction
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