What is the largest specialization in professional psychology

A)  counselling psychology
B)  industrial/organizational psychology 
C)  clinical psychology
D)  developmental psychology

Clinical psychology is considered the largest and most well-known specialization in professional psychology. Clinical psychologists work with individuals, families, and groups to assess, diagnose, and treat mental health disorders. They may provide therapy, administer tests and assessments, and collaborate with other healthcare professionals to provide comprehensive care. The field of clinical psychology offers a range of sub-specialties, including child psychology, neuropsychology, and forensic psychology.