单选题 From the passage, we can infer that "big bang" means______.

A、 the explosion happened billions of years ago, from a single point of nearly infinite energy destiny, which brought about the present universe
B、 the restructuring of the securities industry which took place in London during the late 1980s
C、 the financial system reform that will happen in Japan
D、 a thorough reform in the system of economy or politics etc

【正确答案】 D

【答案解析】由文章的叙述可知，during the late 1980s在伦敦发生的事件以及现在在日本正进行的事件都命名为"big bang"，前者是说the restructuring of the securities industry，而后者指的是to revitalize Japan’s entire financial sector，因此我们可以知道"big bang"并不是特指某次运动，而是象征着对某事物的彻底改革。故选项D正确。