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Not sure whether just replacing few words and company name but keeping the question as assumption qualifies for rephrasing.
At the least the question could be changed from assumption to strengthening when used for marketing...

Just my 2 cents..
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GMATPill
Chema is a factory that creates plastics and plastic related products for the chemical and pharmaceutical industries. It has two options to reduce harmful emissions from its factory - installing scrubbers in its smokestacks and switching to cleaner-burning fuel. Since scrubbers can reduce more harmful emissions than cleaner-burning fuels can, Chema is doing the most it can do to reduce harmful emissions from its factory by installing scrubbers.

Which of the following is an assumption on which the argument depends?

(A) Switching to cleaner-burning fuel will not be more expensive than installing scrubbers.
(B) Chema is not necessarily committed to reducing harmful emissions from its factories.
(C) Harmful emissions from Chema's factories cannot be reduced more by using both methods together than by the installation of scrubbers alone.
(D) Aside from harmful emissions from the smokestacks of its factories, the activities of Chema do not cause significant air pollution.
(E) Chema can choose from various kinds of scrubbers, some of which are more effective than others.


Sourced from GMAT Pill Platform CR Question



SAD to see questions being repeated/rephrased to gain traction from students. One is loosing credibility with this approach.
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It is quite confusing because argument states that Chema has two options to reduce harmful emissions from its factory, but it is not mentioned that can invest in both...
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It is quite confusing because argument states that Chema has two options to reduce harmful emissions from its factory, but it is not mentioned that can invest in both...

Although two options have been mentioned regarding the reduction of emissions, the argument emphasizes more on the fact that one is more effective than the other. No where is it mentioned it can invest in both - that is true, but at the same time the conclusion being claimed is that, "Chema is doing the most it can do to reduce harmful emissions...". We can see two things here,
1.we are not concerned about whether they can invest in both or not as we do not know that
2. what we do know is that chema is clearly not doing the "most" like they claim they do.

They would be doing the most if they were utilizing both options.
Focus more on the most part and what assumption could lead to a breakdown in the conclusion.

Hope that answered your doubt.
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