This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Medicine
[{'content': 'Most common complication of acute pancreatitis is: \nSelect and explain. \nA. Pancreatic abscess, B. Pseudocyst, C. Phlegmon, D. Pleural effusion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' Pseudocyst (Ref Schwartz Handbook, 7/e, p. 704, Harrison 17/e p 2011)."Pseudocyst is the most common complication usually occurring after 2-3 weeks" - Schwartz Handbook, 7/e, p. 704.', 'role': 'assistant'}]