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': 'Which of the following is an oral manifestation of lichen\nplanus? \nSelect and explain. \nA. Dentinogenesis imperfecta, B. Fordyce spots, C. White, chalky enamel. surface, D. White radiating lines on the buccal mucosa', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]