challenge: How far is Mikage Station from the terminus of the Hanshin Main Line at Umeda?
  
  A. 20.7 kilometres (12.9 miles)
  B. 30.7 kilometres (19.1 miles)
  C. 15.7 kilometres (9.8 miles)
  D. 25.7 kilometres (16.0 miles)
  Answer: 