This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammation & Repair, Subject name: Pathology
[{'content': 'C3a, C5a are called? \nSelect and explain. \nA. Chemotactic agent, B. Lytic complex, C. Opsonins, D. Anphylotoxins', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Anaphylotoxins * C5a, C3a 8c to a lesser extent C4a- are called anaphylotoxin because they have effects similar to those of mast cell mediators that are involved in the reaction called anaphylaxis. These effects are due to stimulation of histamine release by these anaphylotoxin. The effects are increased vascular permeability and vasodilatation.", 'role': 'assistant'}]