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
All are causes of hypercalcemia, except: 
Select and explain. 
A. Lithium therapy, B. Chronic renal failure, C. Multiple myeloma, D. Vitamin A intoxication
B: Chronic renal failure
Answer: B: Chronic renal failure 
Explanation: 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)