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 agonist therapy for leiomyoma is given for \nSelect and explain. \nA. 2 → 4 months, B. 3 → 6 months, C. 4 → 8 months, D. 5 → 10 months', 'role': 'user'}, {'content': 'Answer: B \nExplanation: GnRH agonist treatment is continued for 3\xa0→ 6 months.', 'role': 'assistant'}]