This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Physiology
[{'content': 'Lysozyme is present in \nSelect and explain. \nA. Saliva, B. Human milk, C. Tears, D. Mucus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: There are numerous defense proteins present in the saliva. Some of these defense proteins, like salivary immunoglobulins, and salivary chaperokine HSP70/HSPA, are involved in both innate and acquired immune activation . Salivary cationic peptides and other salivary defense proteins, like lysozyme, BPI, BPI-like and PLUNC proteins, salivary amylase, cystatins, proline-rich proteins, Ref: <a href="', 'role': 'assistant'}]