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: Pathology
[{'content': 'Example of Type IV hypersensitivity is ? \nSelect and explain. \nA. Serum sickness, B. Granulomatous reaction, C. Schwazmann reaction, D. Ahus reaction', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Granulomatous reaction", 'role': 'assistant'}]