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': 'Immunoflorescence pattern in pemphigus vulgaris is suggestive of ? \nSelect and explain. \nA. Intercellular IgG deposition, B. C3 and IgG deposition at dermo-epidermal junction, C. IgA deposition at dermo-epidermal junction, D. IgA at pappilary tip', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Intercellular IgG deposition", 'role': 'assistant'}]