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': "Which of the following LA's can cause Methemoglobinemia? \nSelect and explain. \nA. Prilocaine, B. Lignocaine, C. Benzocaine, D. All of the above", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Prilocaine >Lignocaine, Benzocaine can oxidize hemoglobin & cause methemoglobinemia.', 'role': 'assistant'}]