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': 'According to the 1CD-10 revision, for establishing a diagnosis of mania, the symptoms should persist for at least: \nSelect and explain. \nA. 1 week, B. 2 weeks, C. 3 weeks, D. 4 weeks', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer- A. 1 weekAbnormality and persistently elevated, irritable or expensive mood for >1 weeks or need hospitalization>3 ofthese hyperactivities:Decreased need of sleepIncrease in goal orientated activity (social, spiritual, sexual, religious)* Excessive involvement in pleasurable activities (unrestrained buying sprees, foolish business investments, donations or sexual indiscretion) that have a higher potential for painful consequencesMore talkative or pressure to keep talkingInflated self esteem or grandiosityDistractibilityFlight of ideas or racing thoughts', 'role': 'assistant'}]