This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Medicine
[{'content': 'A 40 year old patient, a known case of cirrhosis develops acute episode of GI bleed .Initial therapy given for 6 hours. Which of the following procedure is useful: \nSelect and explain. \nA. Nasogastric aspiration, B. Urgent endoscopy, C. Sedation, D. Ultrasound', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' Urgent Endoscopy algorithm for managing acute upper g.i. bleeding :Acute upper G.I bleeding Resuscitative measures", 'role': 'assistant'}]