From enlargements that are commonly found on the ulna bones of the forearms of Ice Age human skeletons, anthropologists have drawn the conclusion that the Ice Age humans represented by those skeletons frequently hunted by throwing spears. The bone enlargements, the anthropologists believe, resulted from the stresses of habitual throwing.
Which of the following, if true, would be the LEAST appropriate to use as support for the conclusion drawn by the anthropologists?
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AHumans typically favor one arm over the other when throwing, and most ice Age human skeletons have enlargements on the ulna bone of only one arm.
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BSuch enlargements on the ulna bone do not appear on skeletons from other human cultures of the same time period whose diets are believed to have been mainly vegetarian.
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CCave paintings dating from approximately the same time period and located not far from where the skeletons were found show hunters carrying and throwing spears.
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DDamaged bones in the skeletons show evidence of diseases that are believed to have afflicted most people living during the Ice Age.
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ETwentieth-century athletes who use a throwing motion similar to that of a hunter throwing a spear often develop enlargements on the ulna bone similar to those detected on the Ice Age skeletons.
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