Which is Dr. Shigenori Tsukayama's specialty?

• A. Psychiatry
• B. Cardiology
• C. Neurology
• D. Oncology

Answer: (A)

Mental health care is the focus here. Psychiatry is the branch of medicine dedicated to diagnosing, treating, and preventing mental health conditions, as well as addressing behavioral and emotional issues. If Dr. Shigenori Tsukayama is described in a way that centers on mental health care, therapy, and psychiatric treatment, that points to psychiatry as the specialty.

In contrast, cardiology deals with the heart and vascular system; neurology concentrates on disorders of the brain, spinal cord, and nerves—often emphasizing neurological signs and tests; oncology focuses on cancer. Those areas don’t align with a focus on mental health, so psychiatry is the best match for Dr. Tsukayama in this context.