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': 'Selective 5–HT1B/1D receptor agonist useful in acute migraine is : \nSelect and explain. \nA. Buspirone, B. Ondansetron, C. Frovatriptan, D. Ketanserin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]