The correct answer is (a) Dyutivarman.
The Taleshwar copper plate is a copper plate inscription issued by the king of the Katyuri dynasty, Dyutivarman. The inscription was found in the village of Taleshwar in the Chamoli district of Uttarakhand. The inscription records the grant of land to a Brahmin by Dyutivarman.
The other options are incorrect because they are not the names of kings of the Katyuri dynasty.
Dyutivarman was the son of the Katyuri king, Varshavarman. He ruled from c. 815 to c. 850 CE. He was a powerful and successful ruler who extended the kingdom of the Katyuris. He was also a patron of the arts and literature.
The Taleshwar copper plate is an important source of information about the history of the Katyuri dynasty. It provides information about the reign of Dyutivarman and the political and social conditions of the time.