Question ID:PT84 S2 Q2 Passage:Ancient humans in eastern North America hunted mammoths until the mammoth disappeared from the area around 13,000 years ago. Recently, a fossil bone with an engraving that depicts a mammoth was found in an ancient settlement in eastern North America. This shows that the settlement was occupied at a time when mammoths lived in this area. Stem:The argument requires the assumption that  Correct Answer Choice:AChoice A:the engraving was made during the time when the settlement was occupied Choice B:the fossil on which the engraving was made was not a mammoth bone Choice C:when mammoths disappeared from eastern North America, there were no mammoths left anywhere in North America Choice D:the engraving technique employed on the fossil was unique to eastern North America Choice E:there is no scientific way of dating when the engraving of the mammoth was made