A. Riaz Hussain B. Nawab Akbar Bugti C. Sardar Ataullah Mengal D. Aslam Raisani
Explanation:
Riaz Hussain was the first governor of Balochistan. He served as the governor from 1st July 1970 to 1st July 1972. Riaz Hussain belonged to the Pakistan Muslim League (Qayyum faction) and played a significant role in the early governance of Balochistan as a province of Pakistan. His tenure as the first governor laid the foundation for the administrative and political structure of the region.
