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: Pharmacology
[{'content': 'Treatment of choice of acute migraine is - \nSelect and explain. \nA. Ergotamine, B. Sumatriptan, C. Propranolol, D. Paracetamol', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Sumatriptan o Severe migraine attacks should be treated with a triptan (eg. sumatriptan). In contrast to symptomatic treat ment, triptans are best used during estabilished headache phase of the acute attack.", 'role': 'assistant'}]