This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Schizophrenia occurring in persons with IQ less than 70 is 
Select and explain. 
A. Simple, B. Proff, C. Catatonia, D. Hebephrenic
B: Proff
Answer: B: Proff 
Explanation: Schizophrenia in mental retardation is known as Proff schizophrenia Other named Schizophrenia is 1. Van-Gogh schizophrenia - schizophrenia with self-mutilating behaviours. 2. Nuclear schizophrenia: It is when both hebephrenic and catatonic schizophrenia occur.