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': "Fishy net pattern is seen in – \nSelect and explain. \nA. Pemphigus vulgaris, B. Darier's disease, C. Bullous pemphigoid, D. Dermatitis herpetiformis", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]