This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'Type III reaction is: \nSelect and explain. \nA. Antibody mediated, B. Immune complex mediated, C. Cell mediated, D. None', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Immune complex mediated(Ref: Ananthanarayan, 9th/e, p. t621)* Type III reactions differ from type II reactions because its antigens are not attached to the surface of the cell.* Immune complex mediated (Ag - Ab mediated) - deposited in tissue.* Usually complement bound to complex - so serum level falls.* Neutrophil attracted and release enzymes.", 'role': 'assistant'}]