challenge: What is the location of Huaqiao metro station?
  
  A. Intersection of Guangming Road and Yanhu Avenue in Shanghai
  B. Intersection of Guangming Road and Yanhu Avenue in Suzhou
  C. Intersection of Guangming Road and Yanhu Avenue in Jiangsu
  D. Intersection of Guangming Road and Yanhu Avenue in Huaqiao, Kunshan, Suzhou, Jiangsu
  Answer: 