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': 'Contraindications to MRgFUS uterine fibroid are all except \nSelect and explain. \nA. Myoma size >10cm, B. Vascular myomas, C. Uterine size > 24 weeks, D. Abdominal wall scars', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Myomas with poor perfusion is contraindication to MRgFUS.', 'role': 'assistant'}]