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': 'A one month old female child has swelling over the back in the sacral region. There is no cough impulse in the swelling. X-ray examination shows erosion of the coccyx. The most likely clinical diagnosis would be \nSelect and explain. \nA. Meningocele, B. Lipoma, C. Sacro-coccygeal teratoma, D. Neurofibroma', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Sacro-coccygeal teratoma In meningocele there will be cough impulse", 'role': 'assistant'}]