This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Schizophrenia and other psychotic disorders, Subject name: Psychiatry
Worst prognosis is seen in which type of schizophrenia? 
Select and explain. 
A. Paranoid, B. Catatonic, C. Hebephrenic, D. Simple
D: Simple
Answer: D: Simple 
Explanation: Most common-paranoid Best prognosis-catatonic Worst prognosis-simple Personality deterioration-hebephrenic Ref: Essentials of postgraduate psychiatry By JN Vyas 1st ed Pg 365-370