This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mood disorders, Subject name: Psychiatry
[{'content': 'Pathognomonic of maniac episode is \nSelect and explain. \nA. Elevated mood, B. Grandiosity, C. Decreased appetite, D. Increased sleep', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Mania tends to occur in episodes lasting 3-4 months followed by complete clinical cure In mania, there can be delusions of grandeur(grandiosity) with markedly inflated self-esteem. A delusion of persecution may sometimes develop secondary to a delusion of grandeur. (Ref: a sho textbook of psychiatry, Niraj Ahuja, 7th edition, pg no.69)', 'role': 'assistant'}]