Which of the following statements about Kohlberg's theory of moral development is true?
(A). Kohlberg identified three levels of moral reasoning: preconventional, conventional, and postconventional.
(B). Kohlberg believed that individuals progress through the stages of moral development at different rates and reach the highest stage.
(C). Postconventional morality is the third stage of moral development and is characterized by an individual's understanding of universal ethical principles.
(D). Kohlberg's theory emphasizes the role of social experiences and reasoning in shaping moral development.