We derive our information regarding Harsha from

Answer & Explanation

Answer: [C]

The correct answer is Bana. Harsha is known mainly through the works of Bana, whose Harṣacarita (“Deeds of Harsha”) describes Harsha's early career, and of the Chinese pilgrim Xuanzang, who became a personal friend of the king, though his opinions are questionable because of his strong Buddhist ties with Harsha.