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
The first anaesthetic used in clinical anaesthesia: 
Select and explain. 
A. Bupivacaine, B. Cocaine, C. Lidocaine, D. Procaine
B: Cocaine
Answer: B: Cocaine 
Explanation: Cocaine