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': 'Hyper parathyroidism is characterised by the following except - \nSelect and explain. \nA. Generalised osteoporosis, B. Renal calculi, C. Hypercalcaemia, D. osteosclerosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]