A 64-year-old man presents with acute severe epigastric pain radiating to the back after a heavy meal and binge drinking. Serum amylase and lipase are markedly elevated. He is haemodynamically stable. What is the most appropriate initial management?AImmediate ERCP for all casesBAggressive IV fluid resuscitation, analgesia and bowel rest with early assessment of severityCStart broad-spectrum antibiotics in all casesDImmediate laparotomyENo fluids until pain settlesCheck my answer