The correct answer is: Both (A) and (B).
Sader-e-Riyasat was the head of state of Jammu and Kashmir from 1953 to 1965. The first Sadar-e-Riyasat was Dr. Karan Singh, who served from 1953 to 1965. Lakshmikant Jha was the first Governor of Jammu and Kashmir, serving from 1965 to 1967.
The post of Sadar-e-Riyasat was created under the Instrument of Accession, which was signed by Maharaja Hari Singh of Jammu and Kashmir on October 26, 1947. The Instrument of Accession stated that Jammu and Kashmir would accede to India, but with the condition that the state would retain its autonomy. The post of Sadar-e-Riyasat was created to ensure that the state’s autonomy would be protected.
The Sadar-e-Riyasat was appointed by the President of India on the advice of the Prime Minister of India. The Sadar-e-Riyasat had the power to appoint the Chief Minister of Jammu and Kashmir, and to dissolve the state legislature. The Sadar-e-Riyasat also had the power to veto laws passed by the state legislature.
The post of Sadar-e-Riyasat was abolished in 1965, and the state of Jammu and Kashmir became a full-fledged state of the Indian Union. The Governor of Jammu and Kashmir is now the head of state of the state.