This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Complications Of Anaesthesia, Subject name: Anaesthesia
[{'content': 'Bupivacaine toxicity leads to? \nSelect and explain. \nA. Cardiac toxicity, B. Neural toxicity, C. Renal toxicity, D. Hepatic toxicity', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Cardiac toxicity * Bupivacaine is the most cardiotoxic local anesthetic.* Has been explained in previous sessions.", 'role': 'assistant'}]