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
Neuroleptic malignant syndrome is caused by: 
Select and explain. 
A. Carbamazepine, B. Clonazepam, C. Haloperidol, D. Fluoxetine
C: Haloperidol
Answer: C: Haloperidol 
Explanation: None