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
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: 
Select and explain. 
A. PCNL, B. ESWL, C. Diuretics, D. Medical dissolution therapy with potassium citrate
A: PCNL
Answer: A: PCNL 
Explanation: None