challenge: Where is Azna located in relation to Khoramabad and Arak?
  
  A. 133 km. north of Khoramabad and 75 km. east of Arak
  B. 133 km. south of Khoramabad and 75 km. west of Arak
  C. 133 km. east of Khoramabad and 75 km. south of Arak
  D. 133 km. west of Khoramabad and 75 km. north of Arak
  Answer: 