Compare and contrast Existential therapy, Person-Centered Therapy, and Gestalt Therapy. Address the similairities and differences in these therapy approaches' theory of personality, theory of psychopathology, theory of therapeutic process, therapeutic content, and discuss how all three can be combined for treatment.

Reference: Corey, G. (2017). Theory and practice of counseling and psychotherapy (10th Ed). U.S:

Thompson Brooks/Cole. (ISBN- 978-1337199810) with code to access The Case of Stan. Published by Cengage.