This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
Which of the following has least extra-pyramidal side effect? 
Select and explain. 
A. Haloperidol, B. Fluphenazine, C. Clozapine, D. Flupenthioxol
C: Clozapine
Answer: C: Clozapine 
Explanation: Clozapine and risperidone are atypical neuroleptics with least extrapyramidal side effects among all an psychotics.