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': 'In triple response, flare is mediated by which reflex?- \nSelect and explain. \nA. Axon reflex, B. Capillary reflex, C. Arterial reflex, D. Venous reflex', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The triple response of Lewis is a cutaneous response that occurs from firm stroking of the skin, which\xa0leads to the following sequence of events.\n1) Red spot: due to capillary dilatation\n2) Flare: redness in the surrounding area due to arteriolar dilatation mediated by axon reflex.\n3) Wheal: due to exudation of fluid from capillaries and venules\nThe triple response of Lewis is due to the release of histamine.', 'role': 'assistant'}]