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
[{'content': 'Schizophrenia with the worst prognosis \nSelect and explain. \nA. Catatonic, B. Paranoid, C. Hebephrenic, D. Undifferentiated', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Hebephrenic schizophrenia Key Symptoms: Disorganized speech, behavior (often silly/ shallow) and flat or inappropriate affect Order of prognosis from good to bad in Schizophrenia: Catatonic > Paranoid > Undifferentiated > Hebephrenic > Simple Reference: Oxford Handbook of psychiatry; 3rd edition; Chapter 6; Schizophrenia and related psychoses', 'role': 'assistant'}]