challenge: What was the basis of Luigi Pio Tessitori's thesis?
  
  A. An analysis of the connections between Valmiki's Ramayana and Tulsidas's version
  B. A comparison of the Bengali and Italian versions of the Iliad
  C. A translation of the Avadhi version of the Ramayana into Italian
  D. A study of the historical context of the publication of Gaspare Gorresio's works
  Answer: 