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': 'All are features of mania EXCEPT: September 2012 \nSelect and explain. \nA. Insomnia, B. Presssure of speech, C. Disorientation, D. Grandeur delusion', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Disorientation', 'role': 'assistant'}]