The correct answer is: A. 5 years.
The Chief Minister of Jammu and Kashmir is the head of the government of the Indian state of Jammu and Kashmir. The Chief Minister is appointed by the Governor of Jammu and Kashmir, who is appointed by the President of India. The Chief Minister must have the support of a majority of the members of the Legislative Assembly of Jammu and Kashmir.
The tenure of the Chief Minister of Jammu and Kashmir is 5 years. The Chief Minister can be removed from office by the Governor if the Governor loses confidence in the Chief Minister or if the Chief Minister resigns.
Option B is incorrect because the tenure of the Chief Minister of Jammu and Kashmir is 5 years, not 4 years.
Option C is incorrect because the tenure of the Chief Minister of Jammu and Kashmir is 5 years, not 6 years.
Option D is incorrect because the tenure of the Chief Minister of Jammu and Kashmir is 5 years, not 8 years.