This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Pharmacology
Which of the following drug prevent these renal stones? 
Select and explain. 
A. Acetazolamide, B. Hydrochlohiazide, C. Mannitol, D. Furosemide
A: Acetazolamide
Answer: A: Acetazolamide 
Explanation: The renal stones are hexagonal in shape so, cystine stonesCarbonic anhydrase inhibitors are useful for cystinuria.Ref: Goodman Gillman 12th ed. Pg: 680