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: Skin
[{'content': 'True about lichen planus- \nSelect and explain. \nA. Basal cell degeneration, B. Colloid bodies seen, C. Epidermal hyperplasia in chronic cases, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A i.e. Basal cell degeneration; B i.e. Colloid bodies seen; C i.e. Epidermal hyperplasia in chronic cases', 'role': 'assistant'}]