This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia Machine, Subject name: Anaesthesia
All are amide local anesthetic except- 
Select and explain. 
A. Cocaine, B. Lignocaine, C. Prilocaine, D. Bupivacaine
A: Cocaine
Answer: A: Cocaine 
Explanation: Cocaine is ester local anesthetic. Local Anesthetic divided into two groups Amino ester - S.A Cociane Procains Chloroprocaine L.A Benzocaine Tetracaine Amino amide I.A Lignocaine Prilocaine Mepivacaine L.A Bupivacaine Ropivacaine Levobupivacaine Dibucaine