Answer:
Object Permanence
Step-by-step explanation:
Object Permanence applies to the knowledge of the objects that they continue to exist even if they are unperceivable then. The theory of object permanence is a part of developmental psychology. The mental growth and capabilities of the younger children are addressed through this concept. In the above case, Kayla's ability to understand that her father exists and would return to her is because of object permanence.