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': 'Menorrhagia is defined as blood loss per vagina more than : \nSelect and explain. \nA. 80 ml, B. 110 ml, C. 150 ml, D. 50 ml', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is a i.e. 80 ml Menorrhagia is defined as regularly timed episodes of bleeding that are excessive in amount (> 80 ml) and/or duration of flow (> 5 days).', 'role': 'assistant'}]