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: Pharmacology
[{'content': 'Eutectic mixture of local anaesthetic (EMLA) cream is : \nSelect and explain. \nA. Bupivacaine 2.0% + Prilocaine 2.5%, B. Lidocaine 2.5% + Prilocaine 2.5%, C. Lidocaine 2.5% + Prilocaine 5%, D. Bupivacaine 0.5% + Lidocaine 2.5%', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]