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': 'Metrorrhagia is \nSelect and explain. \nA. Heavy menstrual bleeding, B. Intermenstrual bleeding, C. Break through bleeding, D. Post coital bleeding', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The term intermenstrual bleeding is updated nomenclature for metrorrhagia.', 'role': 'assistant'}]