Can someone answer this? "According to Plato, the soul has three parts or drives, each of which has a?

virtue or right functioning that contributes to the soul's health. What are these three parts? What is the virtue of each part? How these parts related to one another in a person who is just? How are they related to each other in a person who is unjust? Do you think this Platonic theory of the soul has relevance today?