This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Pharmacology
Which drug has least extrapyramidal symptoms? 
Select and explain. 
A. Aripiprazole, B. Loxapine, C. Fluphenazine, D. Chlorpromazine
A: Aripiprazole
Answer: A: Aripiprazole 
Explanation: (Ref: KDT 8th ed. pg. 467)* Among given choice, least risk of EPS among atypicals is: ARIPIPRAZOLE.* Typicals always has high EPS.