Answer:
Referent power
Step-by-step explanation:
In psychology, referent power refers to a type of power that comes from the leader's capacity to influence and inspire his followers. Therefore, a group of people end up following the leader's example and acting the way he/she does.
In this example, the Seminal Ballet Dancers consists in aspiring dancers. New members mirror the attitudes and behaviors of other members as doing so makes them fit with the group. We can see that the other members are influencing and inspiring the new younger members to behave like them and the younger ones end up following their example. Thus, this would be an example of Referent power.