This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Cauliflower ear is \nSelect and explain. \nA. Keloid, B. Perichondritis in Boxers, C. Squamous cell carcinoma, D. Anaplastic cell carcinoma', 'role': 'user'}, {'content': "Answer: B \nExplanation: It is due to collection of blood between the auricular cailage and its perichondrium. If haematoma gets infected, severe perichondritis may set in. Often it is the result of blunt trauma seen in boxers, wrestlers and rugby players. Extravasated blood may clot and then organize, resulting in 'Cauliflower ear'. (Reference: Diseased of Ear, Nose and Throat, PL Dhingra,7th edition, pg no.52)", 'role': 'assistant'}]