Final answer:
A radiologist is not a mental health professional, unlike psychologists, counselors, and psychiatrists.
Step-by-step explanation:
The correct answer is B. radiologist.
A radiologist is a medical doctor who specializes in the use of medical imaging techniques, such as X-rays and MRIs, to diagnose and treat diseases and injuries. They are not mental health professionals. On the other hand, psychologists, counselors, and psychiatrists are all mental health professionals who help people with psychological issues and disorders.