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
Percutaneous nephrolithotomy (PCNL) Extra-corporeal shock wave lithotripsy (ESWL) Laparoscopic nephrolithotomy Medical dissolution therapy with oral potassium citrate