If option C is negated to state that 'the book DOES contain events that occurred after 1195", then the conclusion falls apart and there is no way for someone to have predicted those events from beforehand in the future and written about them in the book (that seems like a far fetched reality). However, although option B when negated does seem to weaken the conclusion it may not always be the case, since even if the author did NOT intend to provide the most complete and accurate report of Hu
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