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': "Barret's esophagus can lead to -a) Strictureb) Reflux esophagitisc) Peptic ulcerd) Achalasia \nSelect and explain. \nA. ac, B. bc, C. ad, D. b", 'role': 'user'}, {'content': 'Answer: A \nExplanation: The typical complications of Barrets esophagus include\n\n- peptic ulcers in the columnar lined segment of esophagus\n- high and long strictures and\n- a dysplasia - cancer sequence.', 'role': 'assistant'}]