Which One of the Following Examples Best Illustrates Piaget's Concept

Multiple Choice

Which one of the following examples best illustrates Piaget's concept of object permanence?

A) Two-year-old Jasmine looks for a favorite toy her father has just hidden in a box.
B) Six-year-old Lucas thinks that his recently deceased grandfather is still alive.
C) Ten-year-old Margaret glues the pieces of a vase she has just broken, claiming that she'll make it look "good as new."
D) Fifteen-year-old Kenneth finally understands his geometry teacher's statement that two parallel lines might go on forever without ever touching.