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': 'Test tube rete pegs are the characteristics feature of : \nSelect and explain. \nA. Dilantin hyperplasia., B. Lichen planus., C. Oral submocous fibrosis., D. All of the above.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]