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
Botulinum toxin type B is used in which disease ? 
Select and explain. 
A. Glabellar lines, B. Strabismus, C. Cervical dystonia, D. Blepharospasm
C: Cervical dystonia
Answer: C: Cervical dystonia 
Explanation: Ans. is 'c' i.e., Cervical dystonia