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: Anaesthesia
Which of the following is the shoest acting local anaesthetic ? 
Select and explain. 
A. Tetracaine, B. Bupivacaine, C. Chlorprocaine, D. Prilocaine
C: Chlorprocaine
Answer: C: Chlorprocaine 
Explanation: Procaine and chloroprocaine are the shoest acting local anaesthetics. Prilocaine is intermediate acting, bupivacaine and tetrcaine are long acting local anaesthetics. Reference Essentials of Medical Pharmacology by KD Tripathi, 5e page 320.