A 64-year-old man presents with large-volume haematemesis and melena. He is pale, clammy and hypotensive at 85/50 mmHg, pulse 120 beats/min. What is the most appropriate immediate management priority?AUrgent upper endoscopy in the next 30 minutes without resuscitationBRapid intravenous fluid resuscitation with crystalloids and blood as requiredCCommence high-dose proton pump inhibitor infusion onlyDGive oral tranexamic acid and observeEStart propranolol to reduce portal pressure immediatelyCheck my answer