单选题 What factor can best illustrate that green economy is welcomed by consumers?

A、 Many big famous companies produced it.
B、 It was a trailblazing event in San Francisco.
C、 It would promote more green business, fair trade and fair wages.
D、 More people than expected attended the festival.

【正确答案】 D

【答案解析】[解析] 事实细节题。本题的关键在于理清因果关系：哪个事实可以证明消费者欢迎绿色经济?在给出的四个选项中，[A]和[B]说的是绿色节日的赞助者和意义，[C]是对未来的展望，与题干没有因果关系，只有“与会者之多出乎意料”可以证明绿色经济受人们的欢迎。文中的proves一句也说明这个选项是正确的。