Final answer:
Glinda the Good Witch, according to Maslow's theory, has achieved self-actualization, representing the fulfillment of her potential and a state of contentment.
Step-by-step explanation:
According to Maslow's theory, Glinda the Good Witch represents an individual who has achieved self-actualization. This is the highest level in Maslow's hierarchy of needs, which is characterized by the fulfillment of potential and acceptance of oneself. Glinda is content with her life, suggesting that she has not only met her basic needs but also achieved the higher psychological needs and is engaged in realizing her full potential and appreciating her life for what it is.