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
[{'content': 'Which local anaesthetic has highest protein binding capacity – \nSelect and explain. \nA. Lignocaine, B. Tetracaine, C. Prilocaine, D. Procaine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Amongst given options tetracaine has maximum protein binding.', 'role': 'assistant'}]