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 of the following local anaesthetic agent of choice to remove corneal foreign bodies \nSelect and explain. \nA. Benzocaine, B. Lignocaine, C. Tetracaine, D. Prilocaine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Tetracaine is topical anaesthetic agent used in removal of corneal foreign bodies.', 'role': 'assistant'}]