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': 'Hydatidiform mole is associated with : \nSelect and explain. \nA. Follicular ovarian cysts, B. Theca lutein cysts, C. Ovarian carcinoma, D. Ovarian atrophy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Theca lutein cysts', 'role': 'assistant'}]