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: Pathology
[{'content': 'Greater risk of carcinoma of stomach is associated with - \nSelect and explain. \nA. Old age, B. Intestinal metaplasisa, C. Cardiac end ulcer, D. Prepyloric ulcer', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]