The correct answer is option 2, Banabhatta. Banabhatta was the court poet of King Harshavardhana. He was a famous Sanskrit poet and scholar who lived during the 7th century. Banabhatta is best known for his work "Harshacharita," which is a biography of King Harshavardhana. This work provides valuable insights into the life and reign of the king. Banabhatta`s writing style is characterized by his use of elaborate descriptions and poetic language. He was highly respected during his time and his works continue to be studied and appreciated in the field of Sanskrit literature. Tulsidas, Surdas, and Raskhan were also notable poets, but they were not the court poet of King Harshavardhana.