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': 'Red fluorescent fluid is seen in \nSelect and explain. \nA. Pamphigus, B. Erythema multiforme, C. Lichen Planus, D. Porphyra', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]