In the second paragraph, 'derivatives' most possibly refer to A．instruments that are used by Wall Street to regulate the market. B．subprime mortgage-backed securities and insurance policies. C．profit-making markets with inherent volatility and deficiencies. D．financial products which potentially can cause chaos.
A.instruments B. B．subprime C. C．profit-making D. D．financial E.
【参考答案】
D 语义题。由题干可定位至第二段最后一句，该句说明derivatives是复杂的金融工具。由第三段第一句可知，d......