Question: A client asks how benzonatate works to suppress a cough. Which response should the nurse make to the client? Question options: A) "The drug's anticholinergic effects decrease the cough reflex." B) "Benzonatate anesthetizes the receptor sites of the lungs." C) "Benzonatate reduces the viscosity of the mucus." D) "It raises the cough threshold in the central nervous system."