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 female patient presented with left iliac fossa pain for the past 6 months. On investigation, a 3 cm left renal pelvic stone was found with no hydroureteronephrosis, normal functioning kidneys on both sides and no distal obstruction. The ideal management would be 
Select and explain. 
A. Percutaneous nephrolithotomy (PCNL), B. Extra-corporeal shock wave lithotripsy (ESWL), C. Laparoscopic nephrolithotomy, D. Medical dissolution therapy with oral potassium citrate
A: Percutaneous nephrolithotomy (PCNL)
Answer: A: Percutaneous nephrolithotomy (PCNL) 
Explanation: Ans. a. Percutaneous nephrolithotomy