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': 'Drug of choice for infantile spasms in a patient with tuberous scleosis is - \nSelect and explain. \nA. Vigabatrin, B. Tiagabine, C. Lamotrigine, D. Levetiracetam', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Vigabatrin", 'role': 'assistant'}]