This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
[{'content': 'Which of the following has least extrapyramidal side effect: \nSelect and explain. \nA. Haloperidol, B. Fluphenazine, C. Clozapine, D. Flupenthioxol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ref: KDT 6/e p429 Clozapine is an atypical neuroleptic with least extrapyramidal side effects among all antipsychotics.', 'role': 'assistant'}]