According to Carl Rogers' theory, a person's self-concept is most stable when:

A. According to Carl Rogers, when a person’s actual self (self-image) closely aligns with their ideal self, they experience congruence, leading to a stable and positive self-concept. B. Being unaware of discrepancies between the self-image and ideal self may lead to denial or distortion, not stability. C. Conflict between the self-image and ideal self may cause internal tension and lower self-esteem rather than promote immediate growth. D. Basing self-concept solely on external validation undermines self-worth and leads to an unstable self-concept.