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
Which is an example of type-HI hypersensitivity 
Select and explain. 
A. Contact dermatitis, B. Hemolytic anemia, C. Serum sickness, D. Good pasture syndrome
C: Serum sickness
Answer: C: Serum sickness 
Explanation: Ans. is 'c' i.e., Serum sickness