Question ID:PT45 S1 Q18 Passage:There is evidence to suggest that our cave-dwelling ancestors polished many of their flints to a degree far surpassing what was necessary for hunting purposes. It seems, therefore, that early humans possessed an aesthetic sense. Stem:Which one of the following statements, if true, most seriously weakens the argument? Correct Answer Choice:DChoice A:Most flints used by our cave-dwelling ancestors were not highly polished. Choice B:The caves in which the highly polished flints were found are unadorned by cave paintings. Choice C:There is evidence that these highly polished flints were used for display in religious ceremonies. Choice D:Flints were often used by early humans for everyday chores other than hunting. Choice E:Any benefits that an aesthetic sense would have given to cave-dwelling humans are poorly understood.