The correct answer is: A. 1
The Territorial Council Act was passed in 1951 to provide for the administration of the tribal areas of Himachal Pradesh. The Act provided for the appointment of a Chief Commissioner to be the head of the administration of the tribal areas. The Chief Commissioner was appointed by the President of India and was responsible to the President.
The Chief Commissioner was assisted by a Council of Ministers, which was responsible for the day-to-day administration of the tribal areas. The Council of Ministers was appointed by the Chief Commissioner and consisted of members from the tribal areas.
The Territorial Council Act was repealed in 1972 and the tribal areas of Himachal Pradesh were merged with the rest of the state.
Option A: 1 ruler was appointed in Himachal Pradesh as per the Territorial Council Act.
Option B: 2 rulers were appointed in Himachal Pradesh as per the Territorial Council Act. This is incorrect because only 1 ruler was appointed.
Option C: 3 rulers were appointed in Himachal Pradesh as per the Territorial Council Act. This is incorrect because only 1 ruler was appointed.
Option D: 4 rulers were appointed in Himachal Pradesh as per the Territorial Council Act. This is incorrect because only 1 ruler was appointed.