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': 'Esterase inhibitor deficiency causes: \nSelect and explain. \nA. SLE, B. MPGN, C. Hereditary angioneurotic edema, D. Omen syndrome', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Hereditary angioneurotic edema(Ref: Harrison 18:2666-67, 17th ed 2030, 2031)Deficiency of complement componentDisease/Syndrome1. C1 esterase InhibitorHereditary angioneurotic edema', 'role': 'assistant'}]