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': 'A 40 year old tobacco chewer was given a routine oral examination; on examination non-scrapable white patch was noticed in his left buccal mucosa.\n\nHistological examination will reveal \nSelect and explain. \nA. Normal cells, B. Dysplastic cells, C. Aplastic cells, D. Hyperplastic cells', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]