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 wil cause bony abnormalities: \n(A) Vit. A\n(B) Vit. D\n(C) Vit C\n(D) Vit. E\n(E) Vit. K \nSelect and explain. \nA. Vit. A, B. Vit. D, C. Vit C, D. Vit. E', 'role': 'user'}, {'content': 'Answer: B \nExplanation: "Vit D excess increase intestinal calcium absorption & if severe ,also increase bone resorption 7 " - H17th/2387 “Vit.\nA intoxication cause hypercalcemia & presumed to increase bone resorption Q - H17th/2387 Metabolic Bone Disease Q The common metabolic bone disease is associated\nin varying degree with depletion of bone tissue or bone mineral & [in some cases) with systemic features of altered mineral metabolism The most common condition\nfall into three groups: 1. Osteoporosis-in which the quantity of bone mass\' 3 is abnormally low 2. Osteomalacia- in which the osseous connective tissue [osteoid) is present but\ninsufficiently mineralised\' 3 3. Osteitis fibrosa- in which PTH overproduction leads to bone resorption 13 & replacement by fibrous tissue', 'role': 'assistant'}]