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 one of the following local anaesthetic is highly cardiotoxic: 
Select and explain. 
A. Lignocaine, B. Procaine, C. Mepivacaine, D. Bupivacaine
D: Bupivacaine
Answer: D: Bupivacaine 
Explanation: D i.e. Bupivacaine