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': 'Which of the following is an example of Type III hypersensitivity reaction \nSelect and explain. \nA. Pemphigus vulgaris, B. Myasthenia gravis, C. Pernicious anemia, D. Arthus reaction', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Both serum sickness and arthus reaction are examples of Type III HSR.', 'role': 'assistant'}]