bagdbmba wrote:
Hi Chiranjeev,
I'm not able to get it clearly...!
As you've mentioned (rather as concluded) "since A and B are not the possible reason, C is the cause of increased deaths."..than how can we say that 'only three given reasons are possible' as A & B are already discarded by the author and that's why C comes up as the conclusion...Right?
Please help!
Hi,
I don't really understand your query. I will still try to explain why option E is correct, but if the below explanation does not help, then please explain your doubt a bit more clearly.
Suppose I give you the following argument:
There are two possible explanations for Joe's success. One explanation is that he is super-smart. Other explanation is that he is very hard working. However, Tim is equally successful, but Tim is neither super-smart nor very hard working. Therefore, the actual reason for Joe's success is his ability to understand test maker's mindset.
What is the assumption in this argument?
The argument first tells two possible explanations, A and B, for Joe's success. But then, it says that there is Tim for whom neither explanation works.
Then, the argument concludes that C is the actual explanation for Joe's success.
In other words, the argument presents two explanations A and B for Joe's success and then, it indicates that these explanation could not explain Joe's success since they do not apply to Tim who is as successful as Joe. On the basis of this, the argument concludes that C is the reason for Joe's success.
Now, the first question that should comes to mind on reading the argument is that why not D, E, F, G, H etc could be reasons for Joe's success. Why does the author not consider these other possible explanations?
The reason is that the author assumes that only A, B, and C are possible explanations. So, when he sees that A and B cannot explain, he concludes that C is the reason.
Now, if you understand till now, then you can see that the argument I have constructed is very much parallel to the given argument and the same reasoning applies to explain why option E is correct.
bagdbmba wrote:
P.S: I actually chose D - as you've said "this statement also is not absolutely required for the conclusion to hold true" , I guess this sort of reasoning is pretty uncommon in GMAT CR... Let me know whether I'm wrong.
I don't think this kind of reasoning is uncommon in GMAT CR. You do have strengtheners in assumptions questions in GMAT questions. These strengtheners strengthen the argument but are not absolutely required for the conclusion to hold true.
Thanks,
Chiranjeev
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