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': 'Which of the following is false about fibroadenoma? \nSelect and explain. \nA. Benign, B. Painless, C. Occurs in young females, D. Not capsulated', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Fibroadenomas are benign tumors usually seen in young females.\nThese are encapsulated and move freely within breast so they are called mouse in the breast.', 'role': 'assistant'}]