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': 'Heavy menstrual bleeding is assessed by all except \nSelect and explain. \nA. Passing clots more than 1 inch in diameter, B. Hemoglobin concentration below 12g/dL, C. Menses lasting longer than 7 days, D. Blood loss more than 120 ml', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Blood loss exceeding 80ML is heavy menstrual bleeding.', 'role': 'assistant'}]