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': 'Complement having cell lytic propey ? \nSelect and explain. \nA. MAC, B. C3b, C. C3a, D. C5a', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., MAC", 'role': 'assistant'}]