Adolescent and childhood Egocentrism differ because adolescents tend to believe that others share their preoccupations and are focusing on them. Hence the correct option is c.
Adolescent and childhood egocentrism differ primarily in the way individuals perceive the thoughts and attention of others. During adolescence, there is a tendency for individuals to believe that others share their preoccupations and are intensely focused on them. This egocentric perspective stems from the heightened self-awareness and the desire for social validation that often characterize adolescence.
In contrast, childhood egocentrism, as described by Jean Piaget, refers to the cognitive limitation in which young children struggle to understand that others may have different perspectives or thoughts than their own. While childhood egocentrism involves a more concrete inability to grasp others' viewpoints, adolescent egocentrism is characterized by a more nuanced belief that others are highly attuned to one's own experiences and concerns. Hence the correct option is c.