A 49-year-old woman presents with right upper quadrant pain radiating to the right shoulder, fever and a positive Murphy's sign. Ultrasound shows gallstones and a thickened gallbladder wall. What is the most appropriate initial management?ADischarge with dietary advice aloneBElective laparoscopic cholecystectomy in 6 monthsCAdmit for intravenous antibiotics and early laparoscopic cholecystectomyDERCP with sphincterotomy as first-lineEStart Ursodeoxycholic acidCheck my answer