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: Medicine
[{'content': 'Obesity is associated with all of the following except \nSelect and explain. \nA. Osteoarthritis, B. Hypertension, C. Gall stones, D. Pancreatitis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]