Although part of the ivory available on world markets was taken from wild elephants that were killed illegally, some ivory is derived from sources that nearly all nations define as legal, such as elephants that have died natural deaths. The world’s few remaining wild elephant herds, therefore, are not endangered when those buying ivory at wholesale make a serious effort to limit their purchases to such legal ivory. The argument above depends on the assumption that

A．wholesale buyers attempting to limit their purchases to legal ivory can reliably distinguish legal from illegal ivory.

B．the demand for products made from legal ivory will continue to grow in the near future.

C．there are currently fewer wholesale sources of legal ivory in the world than there are of illegal ivory.

D．wholesale buyers of ivory products are generally unaware of the reasons for the dwindling world supply of ivory.

E．(E) a continued supply of legal ivory is ensured because elephants reproduce in captivity.

克鲁特是德国家喻户晓的“明星”北极熊，北极熊是名副其实的北极霸主，因此，克鲁特是名副其实的北极霸主。
以下除哪项外，均与上述论证中出现的谬误相似

A．儿童是祖国的花朵，小雅是儿童，因此，小雅是祖国的花朵。
B．鲁迅的作品不是一天能读完的，《祝福》不是一天能读完的。
C．中国人是不怕困难的，我是中国人，因此，我是不怕困难的。
D．康怡花园坐落在清水街，清水街的建筑属于违章建筑，因此，康怡花园的建筑属于违章建筑。
E．西班牙是外语，外语是普通高等学校招生的必考科目。因此，西班牙语是普通高校招生的必考科目。