Concept:Identify the highest ruling body in Nigeria during Buhari’s military regime.
Explanation:Buhari led a military government after the 1983 coup.
He established the Supreme Military Council as the top decision-making body.
This council comprised senior military officers who governed the country.
It had authority over all political and administrative matters.
Other bodies like the Federal Executive Council were subordinate to it.
Thus, the correct option is the Supreme Military Council.
Answer:B. Supreme military council.