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 of the following is type III hypersensitivity reaction: September 2006 
Select and explain. 
A. Prausnitz-kustner reaction, B. Contact dermatitis, C. Ahus reaction, D. Rh incompatibility
C: Ahus reaction
Answer: C: Ahus reaction 
Explanation: Ans. C: Ahus reaction