Critical Reasoning (CR) | Re: The fire that destroyed the Municipal Building

I feel there is a catch. Fire started before the dawn in the morning .In the premise it is not stated that whether he went to the library before the fire started or not.it is just stated he went to the library in the morning(may be 12:01AM) . If he went to the library before the fire started he could not have seen the fire or it may be the other way also.I feel C is wrong

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