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
Drug of choice for acute migraine is: March 2010, March 2013 
Select and explain. 
A. Methysergide, B. Sumatriptan, C. Ergotamine, D. Propranolol
B: Sumatriptan
Answer: B: Sumatriptan 
Explanation: Ans. B: Sumatriptan