Correct option is D
Information Booster:
Vakpati – Gaudavaho - Correctly matched - Vakpati was a Sanskrit poet in the Pratihara period.He composed the "Gaudavaho" (The Slaying of the Gauda King).
2.Somdev – Kathasaritsagara - Correctly matched - Somadeva Bhatta (Somdev) compiled "Kathasaritsagara", a famous Sanskrit collection of tales, in the 11th century CE.
3.Dandin – Dashakumaracharita - Correctly matched - Dandin was a 7th-century Sanskrit author known for "Dashakumaracharita" (Tale of the Ten Princes).
4.Bilhana – Navasahasankacharita - Incorrect match - Bilhana was the author of "Vikramankadevacharita", not Navasahasankacharita. "Navasahasankacharita" was written by Padmagupta (also known as Parimala), a poet in the court of King Sindhuraja of Malwa.