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# Fossil-fuel producers say that it would be prohibitively expensive to

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Fossil-fuel producers say that it would be prohibitively expensive to [#permalink]
abhishekmayank wrote:
Guys, not able to drop the option B as strengthener. Kindly help... Thanks

choice B: CO2 emissions were reduced by some countries without expenses incurred but we don't know whether this reduction was enough to halt global warming. What if this is a small reduction and should these countries reduce emissions to such a level(halt GW) that they would then have considerable expenses, we don't know this.
choice D is better.

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Re: Fossil-fuel producers say that it would be prohibitively expensive to [#permalink]
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Fossil-fuel producers say that it would be prohibitively expensive to reduce levels of carbon dioxide emitted by the use of fossil fuels enough to halt global warming. This claim is probably false. Several years ago, the chemical industry said that finding an economical alternative to the chlorofluorocarbons (CFCs) destroying the ozone layer would be impossible. Yet once the industry was forced, by international agreements, to find substitutes for CFCs, it managed to phase them out completely well before the mandated deadline, in many cases at a profit.

Which one of the following, if true, most strengthens the argument?

(A) In the time since the chemical industry phased out CFCs, the destruction of the ozone layer by CFCs has virtually halted, but the levels of carbon dioxide emitted by the use of fossil fuels have continued to increase. - WRONG. An opposite i.e. weakener(if at all it is anything to the passage). But conclusion is not affected by this at all.

(B) In some countries, the amount of carbon dioxide emitted by the use of fossil fuels has already been reduced without prohibitive expense, but at some cost in convenience to the users of such fuels. - WRONG. Probably a bad strengthener. But a not necessary case here.

(C) The use of CFCs never contributed as greatly to the destruction of the ozone layer as the carbon dioxide emitted by the use of fossil fuels currently contributes to global warming. - WRONG. Irrelevant.

(D) There are ways of reducing carbon dioxide emissions that could halt global warming without hurting profits of fossil-fuel producers significantly more than phasing out CFCs hurt those of the chemical industry. - CORRECT. Relatively profits are not hurt more than CFCs producing chemical industry. So, it's good for fossil fuel producers.

(E) If international agreements forced fossil-fuel producers to find ways to reduce carbon dioxide emissions enough to halt global warming, the fossil-fuel producers could find substitutes for fossil fuels. - WRONG. Substituting is fine but what about profits, npnl or no prohibitive expense. Plus its a conditional that can end anywhere.

How does the conclusion that the claim is false is strengthened. This is what we are looking for.
Either its a profit as per the example or if not at best its no profit no loss for fossil fuel producers. It was between B and D but D is sure shot winner.

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Re: Fossil-fuel producers say that it would be prohibitively expensive to [#permalink]
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Re: Fossil-fuel producers say that it would be prohibitively expensive to [#permalink]
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