This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'A patient presents with Abdominal pain, Jaundice and malena. The Diagnosis is - \nSelect and explain. \nA. Hemobilia, B. Acute cholangitis, C. Carcinoma gall bladder, D. Acute pancreatitis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]