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: Biochemistry
[{'content': 'A 5 year old female patient complains of deformed shape of legs. Patient is a strict vegetarian. Lab investigations reveal elevated level of alkaline phosphatase. This patient may be suffering from deficiency of- \nSelect and explain. \nA. Vitamin A, B. Vitamin B1, C. Vitamin C, D. Vitamin D', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Deficiency of\xa0vitamin\xa0D\xa0causes rickets in children\xa0and\xa0osteomalacia in\xa0adults. The weight bearing bones are bent\xa0to\xa0form\xa0bow-legs.\xa0In\xa0rickets, the\xa0plasma level\xa0of\xa0calcitriol\xa0is\xa0decreased\xa0and\xa0alkaline phosphatase\xa0activity\xa0is\xa0elevated.\nSatyanarayana- Biochemistry, 3rd edition, pg-127', 'role': 'assistant'}]