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If they were just another product, the market would work its usual magic: supply would respond to high prices and rise to meet s

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问题     If they were just another product, the market would work its usual magic: supply would respond to high prices and rise to meet surging demand. But human kidneys are no ordinary commodity. Trading them is banned in most countries. So supply depends largely on the charity of individuals. Unsurprisingly, with altruism the only incentive, not enough people offer.
    Kidneys are the subject of a quietly growing global drama. As people in the rich world live longer and grow fatter, queues for kidneys are lengthening fast: at a rate of 7% a year in America, for example, where last year 4,039 people died waiting. Doctors are allowing older and more sluggish kidneys to be transplanted. Ailing, rich patients are buying kidneys from the poor and desperate in burgeoning black markets.
    In the face of all this, most countries are sticking with the worst of all policy options. Governments place the burden on their citizens to volunteer organs. A few European countries, including Spain, manage to push up supply a bit by presuming citizens’ consent to having their organs transplanted when they die unless they specify otherwise. Whether or not such presumed consent is morally right, it does not solve the supply problem, in Spain or elsewhere. On the other hand, if just 0.06% of healthy Americans aged between 19 and 65 parted with one kidney, the country would have no waiting list.
    The way to encourage this is to legalize the sale of kidneys. That’s what Iran has done. An officially approved patients’ organization oversees the transactions. Donors get $2,000-4,000. The waiting list has been eliminated. Many people will find the very idea of individuals selling their organs repulsive. Yet an organ market, in body parts of deceased people, already exists. Companies make millions out of it. It seems perverse, then, to exclude individuals.
    With proper regulation, a kidney market would be a big improvement on the current, sorry state of affairs. Sellers could be checked for disease and drug use, and cared for after operations. They could, for instance, receive health insurance as part of their payment—which would be cheap because properly screened donors appear to live longer than the average Joe with two kidneys. Buyers would get better kidneys, faster. Both sellers and buyers would do better than in the illegal market, where much of the money goes to the middleman. Instinct often trumps logic. Sometimes that’s right. But in this case, the instinct that selling bits of oneself is wrong leads to many premature deaths and much suffering. The logical answer, in this case, is the humane one.
According to the author, policies adopted by most countries are bad in that
选项 A、they actually force citizens to donate organs.
B、the presumed consent is not morally right.
C、they fail to increase supply to an expected level.
D、people donate organs because it is voluntary.
答案C
解析 事实细节题。考查因果细节。根据policies定位到第三段。该段首句为本段主题句，接下来以少数欧洲国家为例(如西班牙)说明为什么是最坏的政策选择，指出了这是因为这些政策没能解决肾脏供给问题，故C项正确。A项force错误；B项morally right跟原文的“且不管从道德上讲这种‘假定同意’是否正确”相悖：D项和题干问题不相关。
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