A patient having multiple Gall stones and shows 8 mm dilation and 4 stones in CBD, best treatment modalities are -a) Cholecystectomy with choledocholithotomy at same settingb) ESWLc) Cholecystectomy and wait for ERCPd) Sphincterotomy and then cholecystectomye) Cholecystectomy and after 14 days sphincterotomy done