The correct option is D Sasanka
Harsha Who is also known as Harshvardhan belonged to Vardhan dynasty. He was the son of Prabhakar Vardhan. After the death of Prabhakar Vardhan, his eldest son Rajyavardhan became the ruler of Thaneshwar but Shashank, the king of Gauda in Bengal cunningly murdered Rajayavardhana. On hearing the murder of his brother, Harsha decided to march against King of Gauda and later killed Shashank in a battle.