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': 'True about diveiculitis: \nSelect and explain. \nA. Occurs at any age, B. Often incidental finding at operation, C. Young patients have more aggressive disease, D. Left sided colon involvement is more common', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans is D (Left sided colon involvement is more common)', 'role': 'assistant'}]