The correct answer is A. Kalhana.
Kalhana was a Kashmiri historian who wrote the Rajatarangini, a chronicle of the kings of Kashmir. He is considered to be the first Kashmiri historian and one of the greatest historians of India.
The Rajatarangini is a Sanskrit text that was written in the 12th century. It is a chronicle of the kings of Kashmir from the time of the Mahabharata to the reign of Jayasimha. The text is divided into eight books and covers a period of over 1,000 years.
Kalhana was born in the 12th century in Kashmir. He was a Brahmin and belonged to the Kaulachara sect of Hinduism. He was well-educated and had a deep knowledge of Sanskrit literature and history.
The Rajatarangini is a valuable source of information about the history of Kashmir. It is the only surviving chronicle of the kings of Kashmir from the time of the Mahabharata to the reign of Jayasimha. The text is also a valuable source of information about the culture and society of Kashmir in the 12th century.
Kalhana was a gifted writer and the Rajatarangini is a well-written and engaging text. It is a valuable source of information about the history of Kashmir and is considered to be one of the greatest works of Indian literature.
Gulab Singh was a Dogra general who founded the princely state of Jammu and Kashmir in 1846. He was not a historian.
Hari Singh was the last Maharaja of Jammu and Kashmir. He ruled from 1925 to 1953. He was not a historian.
Karan Singh was the son of Hari Singh and the last Sadr-i-Riyasat of Jammu and Kashmir. He was a politician and diplomat. He was not a historian.