This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic histology, Subject name: Anatomy
[{'content': 'Submandibular Acinar Cells secrete \nSelect and explain. \nA. Glucagon, B. Lysozyme, C. Insulin, D. Plasma proteins', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Lysozyme, an enzyme with antibacterial activity, is produced primarily by the Submandibular Salivary Gland Acinar Cells', 'role': 'assistant'}]