Answer:
closed stratification system.
Explanation:
Social stratification system is defined as a system through which a particular society tends to rank different categories of individuals hierarchically. Therefore, the stratification system is considered as either open or closed.
Closed stratification system: It is referred to as a system that allows a very little change or alteration in the "social position". In other words, it states that an individual gets a little or no chance of moving towards another level in a particular society and therefore a person in the same society or place where he or she has been born.
In the question above, the given statement signifies the "closed stratification system".