In a Many-to-Many relationship, what must the Junction Entity contain?

In a Many-to-Many relationship, the Junction Entity serves as a bridge between the two parent entities. For this junction to function effectively, it must contain foreign keys that reference each parent entity. This allows the junction entity to establish the relationships between instances of the two parent entities.

By including an identifier, which can be a primary key, the junction entity ensures each record is unique, enabling efficient queries and data retrieval. The foreign keys associated with each parent entity enable the junction entity to connect a specific record from one parent to a specific record of another parent, thereby facilitating the Many-to-Many relationship.

This structure is fundamental because it maintains the integrity of the relationships and ensures that the data model is both scalable and manageable. The other options do not accurately capture the full requirements of a Junction Entity within this specific context.