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': 'Prophylactic Chemotherapy is indicated evacuation of H.Mole in all. Except \nSelect and explain. \nA. Initial level of urine HCG is 40000 IU after 6 week of evacuation, B. Increase in HCG titre 24000 IU after 10 week of evacuation, C. Metastasis, D. Nulliparous lady', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is d i.e. Nulliparous lady', 'role': 'assistant'}]