Which term refers to a medical doctor who specializes in diagnosing and treating mental disorders

A)  clinician 
B)  psychiatrist 
C)  clinical psychologist 
D)  psychometrist

A psychiatrist is a medical doctor who specializes in diagnosing and treating mental disorders, including prescribing medications. A clinician refers to any healthcare professional who provides direct patient care, which may include psychiatrists, clinical psychologists, and other mental health professionals. A clinical psychologist is a mental health professional with a doctoral degree in psychology who provides therapy and may perform psychological assessments. A psychometrist is a professional who administers and interprets psychological tests, often under the supervision of a psychologist or psychiatrist.