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: Orthopaedics
[{'content': 'Hypervitaminosis of which of the following will cause bony abnormalities -a) Vit. Ab) Vit. Dc) Vit. Cd) Vit. Ee) Vit. K \nSelect and explain. \nA. ac, B. a, C. ab, D. bc', 'role': 'user'}, {'content': "Answer: C \nExplanation: Hypervitaminosis 'A' and `D' can cause metabolic bone disease :-\n\n\nHypervitaminosis 'A' → \xa0Bony tenderness and bony swelling.\nHypervitaminosis ‘D’ → Excessive bone resorption.", 'role': 'assistant'}]