This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunity, Subject name: Pathology
Example of Type IV hypersensitivity is - 
Select and explain. 
A. Serum sickness, B. Granulomatous reaction, C. Shwartzman reaction, D. Arthus reaction
B: Granulomatous reaction
Answer: B: Granulomatous reaction 
Explanation: Ans. (b) Granulomatous reaction(Ref: Robbins 9th/pg 208-211; 8th/pg 205-208; Illustrated Dictionary of Immunology by M.P.Arora - Page 501)Granulomatous reaction is an example of type IV hypersensitivitySerum sickness & Arthus reactions are examples of type III hypersensitivityShwartzman reaction is a non-immunologic phenomenon in which endotoxin (lipopolysaccharide) induces local & systemic reactions; It can either be local or systemic type;