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': 'Lallu 40 years has recently started writing books. But the matter in this book could not be understood by anybody; since it contained words which were never there in any dictionary and the theme was very disjoint. Nowadays he has become very shy and self-absorbed. When he addresses people, he speaks about metaphilosophical ideas. What is likely diagnosis - \nSelect and explain. \nA. Mania, B. Schizophrenia, C. A genius writer, D. Delusional disorder', 'role': 'user'}, {'content': 'Answer: B \nExplanation: This patient has:-\n\n\nDisorganized speech:- Speaks about metaphilosophical ideas, a neologism (words never present in any dictionary).\nNegative symptoms (shy and self-absorbed)\n\n\nDiagnosis is schizophrenia.', 'role': 'assistant'}]