For which Piagetian stage might we be correct with the old expression "Out of sight is out of mind"

Question

Quizplus · Accepted Answer

During the sensorimotor stage, which spans from birth to about 2 years of age, children have not yet mastered object permanence, which is the understanding that objects continue to exist even when they cannot be seen, heard, or touched. This is why the expression "Out of sight is out of mind" applies to this stage, as infants tend to forget about objects once they are no longer in their field of vision.

For Which Piagetian Stage Might We Be Correct with the Old