Concept:Aristocracy is rule by the best or most gifted people in a society.Explanation:In an oligarchy, a small group holds power.When that group is made up of people considered the most gifted, talented, or noble, the system is called aristocracy.The word aristocracy is linked to rule by those with the highest qualities of leadership.The other options are incorrect: plutocracy is rule by the wealthy, theocracy is rule by religious leaders, and gerontocracy is rule by elders.Answer:A. aristocracy