Which of the following statements is true about self-concept?

A) It is the tendency to turn an irrational belief into an imagined disaster for yourself.
B) It is the power that is based on your attractiveness to others.
C) It is the power that depends on the threat of possible punishment.
D) It is the foundation of all your thoughts about yourself.

Self-concept is the foundation of all thoughts and perceptions that one has about oneself. It includes beliefs about one's personality traits, abilities, values, and attitudes, among other things. Self-concept is shaped by various factors such as social experiences, culture, upbringing, and personal achievements. It is a dynamic construct that can change over time as people gain new experiences and perspectives about themselves. Therefore, option D is the correct statement about self-concept among the given options.