This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammatory bowel disease, Subject name: Surgery
[{'content': 'False about malignancy in ulcerative colitis: \nSelect and explain. \nA. Mean age is 30 years, B. Anaplastic cancers are common, C. Poor prognosis as compared to sporadic, D. Evenly distributed', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Colitis associated colon cancer Arise from flat dysplasia or dysplasia associated lesion or mass Multiple synchronous colon cancer in 12% Mean age: 30 years Distributed uniformly throughout the colon Mucinous or anaplastic cancers are more common Poor prognosis in sporadic cancer is seen .', 'role': 'assistant'}]