challenge: What was the outcome of the Forty Years' War between the Hanthawaddy Kingdom and the Ava Kingdom?
  
  A. The war ended in a stalemate, but Ava gave up its dream of restoring the Pagan Empire
  B. Hanthawaddy Kingdom became a tributary of Ava Kingdom
  C. Hanthawaddy Kingdom was conquered by Ava Kingdom
  D. Ava Kingdom was completely destroyed by Hanthawaddy Kingdom
  Answer: 