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': 'Schizophrenia is characterised by A/E \nSelect and explain. \nA. Formal thought disorder, B. Delusion of reference, C. Waxy flexibility, D. Altered sensorium', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Altered Sensorium', 'role': 'assistant'}]