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': 'Selective granular IgA deposit at dermal papillae tips is seen in \nSelect and explain. \nA. Bullous phemphigoid, B. Dermatitis Herpetiformis, C. Lichen planus, D. Phemphigus vulgaris', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]