This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hypersensitivity Reactions: Immune-Mediated Injury, Subject name: Pathology
[{'content': 'Anaphylactic shock is caused by w hich type of hypersensitivity reaction? \nSelect and explain. \nA. I, B. II, C. III, D. IV', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., IAnaphylactic shock is caused by type 1 Hypersensitivity reaction.", 'role': 'assistant'}]