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': 'Methemoglobinemia is seen with \nSelect and explain. \nA. Tetracaine, B. Prilocaine, C. Bupivacaine, D. Procaine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Methemoglobinemia is seen with benzocaine, prilocaine and with EMLA.', 'role': 'assistant'}]