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: Biochemistry
[{'content': 'The antibacterial substance present in tears which acts by splitting cell wall components is \nSelect and explain. \nA. Penicillin, B. Lysozyme, C. Betalysine, D. Lactoperoxidase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]