Correct answer: A. Banabhatta
Explanation: The direct answer is A: Kadambari is the famous work of Banabhatta. To understand it from the beginning, Kadambari is a major Sanskrit prose narrative, traditionally attributed mainly to Banabhatta; after his death, his son Bhushanabhatta is generally associated with completing it. Banabhatta lived in the period of King Harsha and is known as an important writer of classical Sanskrit prose. Option A is correct because it names the author traditionally connected with Kadambari. Option B, Kalidasa, was a great Sanskrit poet and dramatist, famous for works such as Abhijnana Shakuntalam and Raghuvamsha, but Kadambari is not his work. Option C, Kautilya, is associated with Arthashastra, statecraft and political economy. Option D, Sushruta, is associated with medicine and surgery, especially the Sushruta Samhita. Exam cue: connect Banabhatta with Harsha’s court and Sanskrit prose, and Kalidasa with classical poetry and drama. The supplied answer is accurate.