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': 'GnRH analogues are useful in all except : \nSelect and explain. \nA. Endometriosis, B. Hyperprolactinemia, C. Precocious puberty, D. Menstrual disturbances', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]