Our 'self-concept' which influences our communication behaviour is developed due to the following factors
1. cultural traditions
2. self-evaluation
3. social roles
4. social organisation

Self-concept means how a person views themselves and this directly affects how they communicate with others.

Cultural traditions shape how we learn to behave, express, react and communicate from childhood.

Self-evaluation affects how confident we feel and how we judge our own abilities, which influences our communication style.

Social roles (student, parent, teacher, leader etc.) define how we communicate differently in different roles.

Social organisation affects society as a whole, but is not a direct personal level factor for self-concept development.

Therefore, only statements 1, 2 and 3 directly contribute to the development of self-concept.