challenge: What is the approximate time period during which Ninurta-nādin-šumi reigned as the 3rd king of the 2nd dynasty of Isin and 4th dynasty of Babylon?
  
  A. 1100-1090 BC
  B. 1150-1140 BC
  C. 1080-1070 BC
  D. 1127-1122 BC
  Answer: 