Fifteen-year-old Mareek believes that other people are as interested in him as he is. This reflects which aspect of adolescent cognitive development?

Imaginary audience

Explanation:

The imaginary audience in adolescent is the state at which an individual believes or imagines that his or she is the main focus of other people's attention. They believe that other people are interested in them just as much as they are interested in themselves. An individual could imagine a multitude is eager to watch or listen to him or her. Although it is most common among adolescents, it could be found among various age groups.