Alan has most likely acquired the concept of object permanence.
<h3>What is object
permanence?</h3>
Realizing that objects and people continue to exist even when you can't see them or hear them is a necessary part of object permanence. This idea was made popular by child psychologist Jean Piaget, and it marks a significant turning point in a baby's mental growth.
A toddler that has attained object permanence, for instance, will actively search out a toy if it is hidden under a blanket.
The kid will accomplish even cuter milestones as object permanence develops, including:
- Memory exploration,
- pretend play,
- language learning
To know more about Object Permanence refer to:brainly.com/question/15702332
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