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
Serum sickness syndrome is an example of: 
Select and explain. 
A. Anaphylactic shock, B. Angioneurotic edema, C. Cell-mediated immunity, D. Systemic arthus reaction
D: Systemic arthus reaction
Answer: D: Systemic arthus reaction 
Explanation: None