A nurse is caring for a client who reports xerostomia following radiation therapy to the mandible. Which of the following is an appropriate action by the nurse?

A. Providing humidification can help alleviate dry mouth by increasing moisture in the air, which is beneficial for the client experiencing xerostomia. B. Alcohol-based mouthwash can exacerbate dry mouth and should be avoided. C. Esophageal speech is typically used for clients who have had laryngectomy, not for those with xerostomia. D. Saltine crackers are dry and could worsen xerostomia by further drying the mouth. Hydration and saliva substitutes are more appropriate.