mallya12 wrote:
Answer choice C is correct? How is answer choice A and B weakening?. How to eliminate A and B on solid grounds?
To answer this question, we need to find an answer choice that does NOT "raise a consideration arguing against the conclusion" of the passage.
The wording of that task makes it tricky! A better way to think about it: to eliminate an answer choice, we need to show that it DOES "raise a consideration arguing against the conclusion" of the passage.
Let's take another look at that conclusion:
Quote:
Advocates of a large-scale space-defense research project conclude that it will represent a net benefit to civilian business.
In stating that the project will represent a "net benefit" to civilian business, the advocates are claiming that the positive effects of the project will outweigh its negative effects. To eliminate an answer choice, we need to show that the statement in question argues against the conclusion that the project will represent a net benefit to civilian business.
With this in mind, let's take a look at answer choice (A):
Quote:
(A) The development of cost-efficient manufacturing techniques is of the highest priority for civilian business and would be neglected if resources go to military projects, which do not emphasis cost efficiency.
This statement tells us that the "highest priority for civilian businesses" would be
neglected if resources are shifted to military projects such as the space-defense research project in question. So, from the perspective of civilian businesses, the
negative effects of embarking on the project could outweigh the positive effects of doing so. This definitely raises a consideration arguing against the conclusion. We can eliminate (A).
Quote:
(B) Scientific and engineering talent needed by civilian business will be absorbed by the large-scale project.
According to this statement, talented scientists and engineers who would otherwise work for civilian business would instead be hired by the government to complete the project. This would definitely have a negative effect on civilian business, and certainly casts doubt on the conclusion that the project would have a "net benefit" for civilian business. (B) is out.
Now look again at (C):
Quote:
(C) Many civilian businesses will receive subcontracts to provide materials and products needed by the research project.
This answer choice establishes another
positive effect that the project would have on civilian business. This strengthens the conclusion that the project will represent a "net benefit" for civilian business, and does not raise a consideration that argues against the conclusion. (C) is the correct answer.
I hope that helps!
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