This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'Ahus reaction is what type of hypersensitivity reaction - \nSelect and explain. \nA. Localized immune complex, B. Ag Ab reaction, C. Compliment mediated, D. Ab mediated', 'role': 'user'}, {'content': 'Answer: A \nExplanation: *type 3 reaction results from deposition of antigen antibody complexes on tissues which is followed by activation of the complement system and inflammatory reaction ,resulting in cell injury.it is also known as immune complex mediated (ahus) reaction.Harshmohan textbook of pathology 7th edition.', 'role': 'assistant'}]