Final answer:
The term that refers to a person's perception of themselves in relation to others and their environment, addressing all aspects of the person, is known as Self-concept (D). This concept includes thoughts and feelings about oneself and is pivotal to psychological health and social development according to theorists like Carl Rogers.
Step-by-step explanation:
A person's self-concept is a broad term that encompasses all aspects of how they perceive themselves in relation to others and their environment. It includes thoughts and feelings, and integrates components such as self-esteem, self-awareness, and the roles one plays in society. An influential theorist who contributed significantly to our understanding of self-concept was Carl Rogers, who identified the terms real self (who we actually are) and ideal self (who we desire to be). High congruence between one's real self and ideal self leads to a higher sense of self-worth and a more productive life according to Rogers. Self-concept begins in early childhood and evolves throughout life as a result of social interaction and introspection.
It is important to note that self-concept is different from self-esteem, which is specifically one's emotional evaluation of their own worth. To answer the student's question directly, a person's perception of himself/herself as related to others and all aspects of the person is referred to as D) Self-concept.