Sentence Correction (SC) | ]In the beginning, it was made clear to wait in the cafeteria until

[quote=SignUp] Is C really the best option ? Are we allowed to add information not given in the question ? And Is this a question that fits the GMAT mould?

Posted from my mobiledevice[/quote]

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To answer your query, in certain cases additional information can be added in a correct answer choice if the original sentence fails to convey a logical meaning or has a pronoun that lacks a referent, however, it is unlikely that the GMAT would apply this concept this extensively
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