This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
[{'content': 'All are causes of hypercalcemia, except: \nSelect and explain. \nA. Lithium therapy, B. Chronic renal failure, C. Multiple myeloma, D. Vitamin A intoxication', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Chronic renal failureCauses of Hypercalcemiaa. Hyperparathyroidism, Hyperthyroid, Pheochromocytoma, MEN -1, Addisonb. Ca of breast, Squamous cell Lung cancer, Renal cell carcinoma, MM, lymphomac. Drugs: Lithium, Thiazided. Vit. D intoxication, Vit. A intoxication, Aluminium intoxicatione. Milk alkali syndromef. Prolong Immobilizationg. Sarcoidosish. Familial Hypocalciuric hypercalcemia (FHH)', 'role': 'assistant'}]