When an adolescent's newly sophisticated metacognitive capability enables him/her to construct elaborate scenarios about others' thoughts, this is known as?

Known as Adolescent Egocentrism, when an adolescent's newly sophisticated metacognitive capability enables him or her to construct elaborate scenarios about others thought. 
David Elkind used the term adolescent egocentrism to describe the situation of adolescents' inability to identify between their perception of what the other thinks about them and what the people think in reality.

Do you have options for this answer

Ibelieve appendix i maybe wrong