The fact that Charley, a two year old, is unable to assume the perspective of Aliya her ten year old sister, Charley's inability described as:
According to the given question, we are asked to find out the name which is given to a two year old who cannot assume the perspective of her ten year old sister.
As a result of this, Charley's inability is as a result of egocentrism which makes him unable to take on the perspective of another person as this is one of the cognitive development stages which usually is at its highest point at around eighteen months.
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