Who introduced the term 'looking-glass self' to highlight that an individual's self-concept develops through social interactions with others?

Explanation

Charles Horton Cooley coined the phrase 'looking-glass self' to describe how a person's identity is shaped by how they believe others perceive them. This concept emphasizes the social nature of self-development, distinguishing Cooley's contribution from those of Mead, Goffman, and Harlow.