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The development of a new type of manufacturing called 3-D

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The development of a new type of manufacturing called 3-D [#permalink]

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New post 01 Apr 2017, 01:14
thelosthippie wrote:
The development of a new type of manufacturing – called 3-D printing or additive manufacturing – will involve futuristic printing machines that can replicate 3-D images and that can lower costs considerably by greatly expanding who and where products can be made.

A. The development of a new type of manufacturing – called 3-D printing or additive manufacturing – will involve futuristic printing machines that can replicate 3-D images and that can lower costs considerably by greatly expanding who and where products can be made.

B. The development of a new type of manufacturing – called 3-D printing or additive manufacturing – will involve futuristic printing machines that can replicate 3-D images and that can lower costs considerably by greatly expanding where products can be made and who can make them.

C. The development of a new type of manufacturing, which is called 3-D printing or additive manufacturing, will involve futuristic printing machines that can replicate 3-D images and that can lower costs considerably by greatly expanding where products can be made and who can make them.

D. A newly developed type of manufacturing called 3-D printing, or additive manufacturing, involves futuristic printing machines that can replicate 3-D images, and this will lower costs considerably by greatly expanding who and where products can be made.

E. A newly developed type of manufacturing called 3-D printing, or additive manufacturing, involves futuristic printing machines that can replicate 3-D images and that will lower manufacturing costs considerably by expanding where products can be made and who can make them.


OFFICIAL EXPLANATION


Explanation: On questions like this, in which there are so many decision points, you must find a concrete error and use that to eliminate several answer choices. Perhaps the best place to start on this example is the choice of subject between “the development of a new type of manufacturing” and “a newly developed type of manufacturing” along with the verb that accompanies it (“will involve” and “involves”) Here the primary concept is logical predication. First, it is not the development that involves the futuristic printers but the type of manufacturing that involves the futuristic printers. Also, the future tense in (A), (B), and (C) is wrong: if you say “the development will involve” it is as if nothing has yet taken place, which is illogical given the context of the sentence. For the sentence to be correct, it must be the new type of manufacturing that involves the printers and that is taking place now, not in the future. In choosing between (D) and (E), the easiest decision point comes at the end. In (D), “by greatly expanding who and where products can be made” is nonsensical as “who products can be made” is clearly wrong. Answer choice (E) corrects that by changing it to “where products can be made and who can make them
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The development of a new type of manufacturing called 3-D [#permalink]

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New post 07 Nov 2017, 18:43
Zarrolou wrote:
A, B and C have the same error

The development of a new type of manufacturing (...) will involve

The new type of manufacturing "will involve (...)", not its "developement" (logical error). We are down to D and E.

D. A newly developed type of manufacturing called 3-D printing, or additive manufacturing, involves futuristic printing machines that can replicate 3-D images, and this will lower costs considerably by greatly expanding who and where products can be made.

It seems to say that the fact that "can replicate 3-D images" will lower the cost: wrong.
"who (...)products can be made" is another error in the answer. "Who" needs a different verb than "where" ( where products can be made and who can make them )

E is correct




Who and where products can be made --> Is there any problem?, if any, could you please explain it?

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Re: The development of a new type of manufacturing called 3-D [#permalink]

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New post 29 Nov 2017, 04:19
I discarded E as the intended meaning of the sentence is lost and it is rightly highlighted by KevinRocci . I guess this question should be tagged with debatable OA.

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Re: The development of a new type of manufacturing called 3-D   [#permalink] 29 Nov 2017, 04:19

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