Concept:In the Oyo Empire, the kingmakers were the seven senior chiefs who formed the Oyomesi council.
Explanation:The Oyomesi was the most powerful political council in the Oyo Empire.
It was made up of seven hereditary chiefs led by the Bashorun.
Their main duty was to install a new Alafin whenever the throne became vacant.
They also had the power to remove a bad or unpopular Alafin from office.
Furthermore, they supported the Alafin in the day-to-day administration of the empire.
As a result, the Oyomesi were recognised as the official kingmakers of Oyo.
Answer:D. Oyomesi