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': 'Botulinum toxin type B is used in which disease ? \nSelect and explain. \nA. Glabellar lines, B. Strabismus, C. Cervical dystonia, D. Blepharospasm', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Cervical dystonia", 'role': 'assistant'}]