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': 'Which of the following is not true of Vit D? \nSelect and explain. \nA. Its active form is calcitriol, B. Increases calcium absorption from the intestines, C. Its deficiency results in rickets, D. Its decrease causes phosphate reabsorption from the kidneys', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]