Answer:
control rests with a small group, such as military officers or a few wealthy families.
Step-by-step explanation:
Oligarchy is a structural composition of an organisation where a small group of organized individuals such wealthy families, military, religious heads, nobles, etc. control and concentrate the power of the state in their hands.
These groups of individuals are often considered as elites and form a part of organized minority who controls the whole power structure of the society.
Though there can be an existence unorganized majority, these groups of individuals have strong and deep-rooted status quo in the society because of their wealth, expertise and position. Thus, making them the ruling class of the society.