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': 'In vitamin A deficiency, patient complains of all of the following except: \nSelect and explain. \nA. Night blindness, B. Xerophthalmia, C. Keratosis, D. Phosphoric calciuria', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]