Final answer:
d) Psychotherapist. A psychotherapist treats mental disorders using talk therapy and various therapeutic techniques such as cognitive-behavioral therapy or psychodynamic therapy.
Step-by-step explanation:
The therapist that treats mental disorders is a psychotherapist.
Psychotherapists are trained professionals who use talk therapy to help individuals with mental disorders, emotional difficulties, and behavioral problems. They work with patients to understand their thoughts, feelings, and behaviors and help them develop coping strategies and make positive changes in their lives.
For example, a psychotherapist may work with someone who is experiencing anxiety, depression, or trauma, using various therapeutic techniques such as cognitive-behavioral therapy, psychodynamic therapy, or mindfulness-based therapy.