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': 'Malignant prevalence in fibroid is : \nSelect and explain. \nA. 0.50%, B. 1%, C. 5%, D. 10%', 'role': 'user'}, {'content': 'Answer: A \nExplanation: 0.50%', 'role': 'assistant'}]