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GMAT Prep : CR 5

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Senior | Next Rank: 100 Posts
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by Skywalker » Sun Oct 03, 2010 10:14 am
Hi,

This CR really got to me .....pls explain how the OA is option D. What is the thinking behind it ......



Image
StAy HuNgry sTay fOOlisH
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Source: — Critical Reasoning |
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by this_time_i_will » Sun Oct 03, 2010 10:39 am
D: if scientist's never knew about the crystalline sturcture, this means they never knew about how it was made. So there may be chance that this might have been created naturally in a different way than the way createdd in lab.
so the lab's procedure can not work as a test-case.
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by ov25 » Sun Oct 03, 2010 10:40 am
imo D

says well, the scientists may not know everything to use the knowledge for evaluating a hypothesis...


B: metiorioid had it..well the hypothesis is about earth's structure at time they formed naturally.
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