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: Surgery
[{'content': 'A patient presents with pain and tenderness in left iliac fossa. USG shows a 3 cm stone in the renal pelvis without any hydronephrosis. Most appropriate management is: \nSelect and explain. \nA. PCNL, B. ESWL, C. Diuretics, D. Medical dissolution therapy with potassium citrate', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]