The correct answer is (a) Radha Krishan Mathur.
Radha Krishan Mathur was the first Lieutenant Governor of the newly created Union Territory of Jammu and Kashmir. He was appointed on August 5, 2019, after the abrogation of Article 370 of the Indian Constitution. He served in this position until October 31, 2020.
Girish Chandra Murmu was the second Lieutenant Governor of Jammu and Kashmir. He was appointed on November 1, 2020.
Manoj Sinha is the third and current Lieutenant Governor of Jammu and Kashmir. He was appointed on August 23, 2021.
Satyapal Malik was the Governor of Jammu and Kashmir from August 2018 to October 2019. He was the first Governor of the state after the abrogation of Article 370.