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: Dental
[{'content': 'Increased thickness of granular layer is found in \nSelect and explain. \nA. Psoriasis, B. Lichen planus, C. Ecthyma gangreosum, D. Intertigo', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Hypergranulosis is seen in Lichen planus whereas Psariosis is characterized by absent granular layer.', 'role': 'assistant'}]