Final answer:
The theory of "good enough mothering" was developed by Donald Winnicott, not by any of the theorists listed in the question's choices. Erik Erikson is known for his psychosocial development theory, which is distinct from Winnicott's concept.
Step-by-step explanation:
The theory of "good enough mothering" was developed by Donald Winnicott, a pediatrician and psychoanalyst. This concept is not directly related to the theorists mentioned in the question, such as Jean Piaget, Sigmund Freud, Margaret Mahler, or Erik Erikson. However, the student may have been confused with Erikson's theories, which are centered on psychosocial development across the lifespan and do not specifically address the idea of 'good enough mothering.'Erik Erikson is renowned for his theory of psychosocial development that suggests personality development continues throughout one's life with eight distinct stages, each characterized by a psychosocial challenge. Although he drew on Freud's ideas, he diverged by emphasizing social rather than psychosexual development, leading to his unique contributions to the field of developmental psychology.