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': 'Not true about malignancy arising from Ulcerative colitis is - \nSelect and explain. \nA. Takes atleast 10 years to develop, B. Left sided is more common, C. Associated with dysplasia of the rest of the colon, D. Younger age of onset is associated with increased chance of carcinoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]