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: Gynaecology & Obstetrics
[{'content': 'All except one is true about Hot flushes \nSelect and explain. \nA. Affects only upper trunk and head and neck, B. Starts to occur a year before menopause, C. occurs upto one year after menopause, D. Possible role of serotonin is implicated', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Hot flushes start to occur a year or two before menopause, intensify in 1st year after menopause and on an average last upto 5 years.', 'role': 'assistant'}]