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: Microbiology
[{'content': 'Serum sickness syndrome is an example of: \nSelect and explain. \nA. Anaphylactic shock, B. Angioneurotic edema, C. Cell-mediated immunity, D. Systemic arthus reaction', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]