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': "Lutein cysts are associated with all except \nSelect and explain. \nA. Gestational trophoblastic tumours, B. Clomiphene administration, C. Bilaterality, D. Use of OCP's", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]