What Does Piaget's Cognitive-Developmental Theory Suggest About Children and Object

What does Piaget's cognitive-developmental theory suggest about children and object permanence?

A) Children develop an understanding of object permanence all at once.
B) Children develop the skills that lead to object permanence by 3 months of age.
C) Children come to understand object permanence even without prior experience.
D) Children develop object permanence before they develop emotional bonds to specific caregivers.