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题目材料：
Fossil evidence shows that within a century after the arrival of the first settlers on the island of Corme 16,000 years ago, the one species of kangaroo that had been thriving on Corme became extinct. Archaeologists contend that the primary cause of the kangaroo's extinction was land-clearing rather than hunting. Evidence shows that the settlers burned large tracts of vegetation to clear land for cultivation, which would have greatly reduced the food available for the kangaroo.
Which of the following, if true, provides most support for the archaeologists' contention?
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AThe fossil record on Corme shows no evidence that any other mammals disappeared in the period following the arrival of settlers.
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BAt the time settlers first arrived, Corme was in the midst of a period when its climate was becoming increasingly arid and its pattern of vegetation was consequently changing.
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CThe earliest settlements on Corme were spread along the island's coasts.
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DArchaeological excavation of the settlements on Corme has yielded large quantities of bones of many species of mammal and fish but very few kangaroo bones.
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EThe earliest settlers on Corme cultivated food plants that they found growing wild on the island.
D显示答案
