This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': 'The drug used to treat dry mouth in cancer chemotherapy is \nSelect and explain. \nA. Oxotremorine, B. Methacholine, C. Cevimeline, D. Pilocarpine', 'role': 'user'}, {'content': "Answer: C \nExplanation: Cevimeline increase salivary secretions and has a specific use in Sjogren's and xerostomia It is a parasympathomimitic and muscarinic agonist with paicular actions on M1 and M3 receptors. Ref: HL Sharma.3rd ed. Pg 138", 'role': 'assistant'}]