This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
[{'content': "Eugene Bleuler's four 'A' of schizophrenia are all except- \nSelect and explain. \nA. Autism, B. Affect, C. Anhedonia, D. Association", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]