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': "Quant's sign (a T-shaped depression in the occipital bone) may be present in - \nSelect and explain. \nA. Down's syndrome, B. Head injury, C. Rickets, D. Scurvy", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Rickets", 'role': 'assistant'}]