This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Plastic & Reconstructive Surgery, Subject name: Surgery
[{'content': "Cock's peculiar tumour is: \nSelect and explain. \nA. Papilloma, B. Infected sebaceous cyst, C. Cylindroma, D. Squamous cell carcinoma", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans: b (Infected sebaceous cyst)Ref: Bailey & Love, 23rd ed,p. 173, Fig (13.15) & S. Das Surgery, 3rded, p. 81', 'role': 'assistant'}]