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': 'Tokyo guidelines are used to assess severity of which condition \nSelect and explain. \nA. Peptic ulcer disease, B. GERD, C. Cholecystitis, D. IBD', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Tokyo guidelines are used in diagnosing, assessing severity and treatment of cholecystitis and cholangitis.', 'role': 'assistant'}]