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: Surgery
[{'content': 'Type of fibroadenosis most likely to undergo malignant change is - \nSelect and explain. \nA. Adenosis, B. Epitheliosis, C. Sclerosing adenosis, D. Cystic', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]